Hobbyist group · Cichliformes
Cichlids
- Species
- 289
- Families
- 1
- Genera
- 116
- Photographed
- 265 of 289
- Difficulty rated
- 289 of 289
Families
Where they come fromnative records only

Apistogramma borelliiBorelli's Dwarf Cichlid
Cichlidae · (Regan, 1906)
Borelli's dwarf cichlid, Apistogramma borellii, is from southern Brazil, Paraguay, Argentina and Uruguay. Also known as the umbrella or yellow dwarf cichlid, it occurs in creeks and tributaries of the rio Paraguay, lower rio Paraná and Uruguay systems. Captive-raised fish are the recommended choice for the community aquarium, while wild examples are best kept alone or with small dither fishes.

Apistogramma hoignei
Cichlidae · Meinken, 1965
Apistogramma hoignei is a dwarf cichlid from the Río Orinoco basin in Venezuela, including the Apure, Arauca and Caura drainages. It is also known from much of the lower Orinoco mainstream. Coded A116 under the DATZ system, it has similar-looking, possibly conspecific populations referred to as A117 or A118, and inhabits slower-moving tributaries, backwaters and creeks where leaf litter collects.

Apistogramma hongsloi
Cichlidae · Kullander, 1979
Apistogramma hongsloi is a dwarf cichlid from the Río Vichada and middle Río Meta basins in Colombia and the middle Orinoco in Venezuela. Coded A110 under the DATZ system, it has similar-looking, possibly conspecific populations referred to as A111 to A115 depending on locality. It lives in small tributaries and still waters, and males grow to 55 to 60 mm and females to 40 to 45 mm.

Laetacara curvicepsDwarf Flag Cichlid
Cichlidae · (Ahl, 1924)
The dwarf flag cichlid, Laetacara curviceps, is a small cichlid from the lower Amazon basin in Brazil. An established aquarium favourite, it has also been called 'flag acara', 'smiling acara', 'sheepshead acara' and 'blunt-headed cichlid'. Populations differ in the degree of red and blue on the body and fins. It favours clear, slow-flowing water over leaf litter and is a biparental substrate-spawner.

Laetacara dorsigeraRedbreast Acara
Cichlidae · (Heckel, 1840)
The redbreast acara, Laetacara dorsigera, is a small cichlid from the Guaporé in Bolivia and Brazil, and the Paraná and Uruguay systems further south. Breeding males and females develop conspicuous red cheeks, opercula and belly, a feature L. curviceps lacks. A dark spot in the middle of the dorsal fin is shared only with L. curviceps and L. flamannellus. Populations vary in colour pattern, and it is a biparental substrate spawner growing to around 37 mm SL.

Laetacara fulvipinnis
Cichlidae · Staeck & Schindler, 2007
Laetacara fulvipinnis is a cichlid from the Orinoco, the Casiquiare and the upper and middle rio Negro in Venezuela and Brazil. Known in the hobby as L. sp. 'orangeflossen' before it was described, it takes its name from the reddish-yellow anal and caudal fins. It has been collected among leaf litter and submerged vegetation in very shallow, soft, acidic blackwater, and grows to around 74 mm SL. A biparental substrate-spawner, it lays its eggs on a solid surface such as a plant leaf.

Laetacara thayeri
Cichlidae · (Steindachner, 1875)
Laetacara thayeri is a cichlid from the middle and upper Amazon basin in western Brazil and northern Peru. It is relatively rare in the aquarium trade. Ctenoid scales on the sides of the head and the lack of a dark spot at the caudal-fin base separate it from all congeners. Males grow larger than females and develop more-extended dorsal, anal and caudal fins.

Laetacara flamannellus
Cichlidae · Ottoni, Bragança, Amorim & Gama, 2012
Laetacara flamannellus is a small cichlid from the eastern coastal rivers of Amapá state, Brazil. It has mostly been collected from shallow, still water among sedge-like plants in grasslands that flood between January and June. An orange ring around the dark spot at the dorsal-fin base separates it from L. curviceps and L. dorsigera, and it may have been traded occasionally as L. curviceps.

Anomalochromis thomasiAfrican Butterfly Cichlid
Cichlidae · (Boulenger, 1915)
The African butterfly cichlid, Anomalochromis thomasi, is a dwarf cichlid from forest streams in Sierra Leone, Guinea and Liberia. Juveniles can look a little dull on sale, but it is peaceful, relatively undemanding and easily bred, and one of the best choices for the newcomer to dwarf cichlids. The genus is monotypic, although several colour forms are available from time to time and some may prove to be distinct species.
Apistogramma alacrinaRedspot Dwarf Cichlid
Cichlidae · Kullander, 2004
The redspot dwarf cichlid, Apistogramma alacrina, is from the Río Guaviare (Orinoco) and Río Orteguaza (Amazon) drainages in Colombia. It differs from all other described members of the genus in having dark blotches at the dorsal and ventral base of the pectoral fins. Three very similar fishes coded A106, A107 and A108 may or may not be conspecific with it, since they show some differences in colour pattern and morphology.

Apistogramma bitaeniataTwo-Striped Dwarf Cichlid
Cichlidae · Pellegrin, 1936
The two-striped dwarf cichlid, Apistogramma bitaeniata, ranges across the Peruvian, Colombian and Brazilian Amazon, from the Marañón to the Tapajós. Also known as the banded dwarf cichlid, it occurs in several colour forms depending on locality, loosely grouped as 'red', 'blue', 'orange' and 'yellow' in the hobby. Many locality names are in use for these forms, and several are regularly applied incorrectly.

Apistogramma eunotus
Cichlidae · Kullander, 1981
Apistogramma eunotus is a dwarf cichlid from the Río Ucayali in Peru and the Solimões/Amazon in Colombia and Brazil, as far east as the Japurá. Coded A73 under the DATZ system, it has similar-looking, possibly conspecific populations referred to as A74 to A77 depending on locality. It inhabits slow-moving streams, creeks and tributaries, and captive-raised fish are the recommended choice for the community aquarium.

Gnathochromis permaxillaris
Cichlidae · authority not recorded
Gnathochromis permaxillaris is a deep-water cichlid endemic to Lake Tanganyika, recorded foraging at depths of up to 200 metres. The upper lip of adults is extended to extraordinary proportions, so the mouth faces downwards when opened, and the fish uses it to sift invertebrates from the sand. It is rare in the trade because it is difficult to collect in numbers, it is sensitive to deteriorating water quality, and the colour morphs should not be mixed as they may hybridise.

Hemichromis lifaliliBlood-Red Jewel Cichlid
Cichlidae · authority not recorded
The blood-red jewel cichlid, Hemichromis lifalili, is a cichlid endemic to the Democratic Republic of Congo. Often confused with H. bimaculatus, it has two black spots on the flanks against that species' three, and its round midlateral marking sits above the lateral line, unlike the oval one of the red form of H. guttatus. It becomes very aggressive when spawning but is fairly placid otherwise, and is not a particularly good species for the community tank or for newcomers to cichlids.

Heros efasciatusSeverum
Cichlidae · authority not recorded
The severum, Heros efasciatus, is a cichlid from the Amazon main channel and the Rio Solimoes, also recorded from the Rio Xingu. One of the most popular and readily available cichlids in the hobby, it is sold in the standard green form and in gold. Many buyers do not realise it grows fairly large, often 20 to 25 cm in aquaria, and it needs a tank of at least 120 cm. Outside spawning it is fairly mild-mannered for its size.

Herotilapia multispinosaRainbow Cichlid
Cichlidae · authority not recorded
The rainbow cichlid, Herotilapia multispinosa, is a Central American cichlid from eastern Honduras and throughout Nicaragua and Costa Rica. Peaceful by Central American standards, it suits fishkeepers who do not want the more aggressive species, and can live with tetras, barbs and smaller peaceful cichlids. In nature it inhabits turbid lakes, swamps and marshes with soft, muddy substrates, and in the aquarium it typically reaches around 10 cm.

Hypselecara temporalisChocolate Cichlid
Cichlidae · authority not recorded
The chocolate cichlid, Hypselecara temporalis, is a large cichlid from Peru, Colombia, Venezuela and Brazil. It most often inhabits silt-laden, slow-flowing rivers, and has been collected in the Ucayali, Amazonas, Solimões, Amapá and Oyapock. Although it reaches 30 cm, it is quite a placid species and can be kept in a community of large fish in a suitably-sized tank.

Labidochromis caeruleusCaeruleus
Cichlidae · authority not recorded
Labidochromis caeruleus is a relatively peaceful mbuna from the northern part of Lake Malawi, best known in the hobby for its 'electric yellow' morph. That morph is one of the rarer forms in nature, where the blue and white variety is more widespread, and most fish on sale are tank-bred. It lives among rocks and in beds of Vallisneria. It was originally imported as L. tanganyicae, and should not be mixed with other forms or Labidochromis species as they may hybridise.

Melanochromis lepidiadaptes
Cichlidae · authority not recorded
Melanochromis lepidiadaptes is an mbuna endemic to Lake Malawi, found only in a limited area around Makanjila Point on the eastern side. Originally sold as M. fuscus and then M. sp. 'lepidophage', it apparently feeds almost solely on the scales of other species in nature, though not other mbuna. Relatively peaceful for a Melanochromis, it suits a Lake Malawi aquarium with cichlids of similar size and disposition.

Nannacara anomalaGolden Dwarf Cichlid
Cichlidae · authority not recorded
The golden dwarf cichlid, Nannacara anomala, ranges from the Rio Aruka in Guyana to the lower Rio Marowijne in Suriname. It is often found in flooded grassland in low-lying coastal areas, but most fish in the trade are mass-produced on farms in the Far East or Eastern Europe. Hardy and easy to breed, it is regarded as an excellent beginner's cichlid, though a female guarding fry can be very aggressive.

Nannacara taeniaStriped Dwarf Cichlid
Cichlidae · authority not recorded
The striped dwarf cichlid, Nannacara taenia, is known only from the area around Belém in Pará state, Brazil. A fairly shy fish of small, densely planted streams, it tends towards a drab brown and is rarely seen in shops, so it is more often obtained through specialist cichlid dealers or amateur enthusiasts. The female guards the eggs in a small cave while the male guards the wider territory.

Otopharynx lithobatesSulphur-headed Hap
Cichlidae · authority not recorded
The sulphur-headed hap, Otopharynx lithobates, is a cichlid endemic to Lake Malawi, where it lives among caves and crevices in rocky areas. A true rock dweller, it is hardly ever seen in open water, even in aquaria. In breeding males the three flank spots are masked by neon blue patterning and the dorsal fin and top of the head turn deep yellow-orange. It has been sold in the trade as 'Aristochromis sp. red top'.

Parachromis managuensisJaguar Cichlid
Cichlidae · authority not recorded
The jaguar cichlid, Parachromis managuensis, is a large predatory cichlid from eastern Central America, from Honduras through Nicaragua to Costa Rica. Almost exclusively carnivorous, it will see smaller fish as food and is always territorial. A large aquarium is required, and a single spawn from large adults can produce 3000 fry.
Parachromis motaguensisFalse Yellowjacket Cichlid
Cichlidae · authority not recorded
The false yellowjacket cichlid, Parachromis motaguensis, is a large predatory cichlid from Guatemala, El Salvador and Honduras. It occurs in lakes and larger streams, most often in the central flowing parts of rivers. Aggressive towards its own and other species, it treats anything that fits in its mouth as food, and a breeding pair will hurt any other fish in the tank, even significantly bigger ones.

Paratilapia polleni
Cichlidae · authority not recorded
Paratilapia polleni is a large cichlid endemic to Madagascar, widespread on the island and known to many natives as 'marakely', meaning 'black fish'. Like most Madagascan cichlids it is highly endangered in the wild through habitat destruction and competition from introduced species. Large- and small-spotted forms exist whose identity is unconfirmed, and they should never be mixed in aquaria since they hybridise freely.

Placidochromis milomoSuper VC 10 Hap
Cichlidae · authority not recorded
The Super VC 10 hap, Placidochromis milomo, is a cichlid endemic to Lake Malawi, found in the southern part of the lake and at Nkhata Bay. Wild fish have massively enlarged lips for scraping algae and invertebrates from rocks, but these usually recede in the aquarium and do not develop at all in tank-bred fish. Relatively peaceful, it does well with larger Malawians but not mbuna, and only one male should be kept unless the tank is very large.

Pterophyllum "scalare"Angelfish
Cichlidae · authority not recorded
The angelfish, Pterophyllum scalare, is a cichlid from the Amazon, Essequibo, Oyapock and other rivers of northern South America. Adults reach 15 cm in body length and 20 cm or more in height, so it needs a tall tank. Almost all fish on sale are mass-produced, in black, gold and koi strains as well as the standard silver, and while generally peaceful it may eat small fish such as tetras.

Rubricatochromis bimaculatusJewel Cichlid
Cichlidae · (Gill, 1862)
The jewel cichlid, Rubricatochromis bimaculatus, is a cichlid from Africa's western coast, between southern Guinea and central Liberia. Regularly seen in the trade and often sold as a community fish, it is not recommended for the beginner or the general community tank, and it becomes very aggressive when spawning. It can be told from Hemichromis lifalili by a third black spot, on the caudal peduncle. It is still often sold as Hemichromis bimaculatus.

Vieja maculicaudaBlackbelt Cichlid
Cichlidae · authority not recorded
The blackbelt cichlid, Vieja maculicauda, is a large cichlid found from the Usumacinta basin in Guatemala south to the River Chagres in Panama. It takes its name from the vertical black stripe around its flank and from its toughness. It lives in slow-moving rivers and lakes, sometimes in brackish or even marine conditions, and should only be kept with similarly aggressive fish of similar size.
Xenotilapia melanogenysBlack-Chinned Xenotilapia
Cichlidae · authority not recorded
The black-chinned xenotilapia, Xenotilapia melanogenys, is a cichlid endemic to Lake Tanganyika, where it lives in huge shoals over sandy substrates. Much of the literature still places it in the genus Enatiopus. The shoals in nature appear to be fixed, with an individual remaining in the same group for life. A skittish fish, it may react very nervously to rapid movements outside the tank and should not be kept with boisterous fish such as mbuna.

Julidochromis ornatusGolden Julie
Cichlidae · authority not recorded
The golden julie, Julidochromis ornatus, is a cave-spawning cichlid endemic to Lake Tanganyika, found mainly in the north of the lake. One of the most common Julie species in aquaria, it may also be sold as the yellow or ornate julie. Most specimens available are tank bred and lack the bright colouration of wild fish. Several geographical morphs and an albino aquarium sport exist, and none should be kept with other Julidochromis as they may hybridise.

Laetacara araguaiae
Cichlidae · Ottoni & Costa, 2009
Laetacara araguaiae is a small cichlid from the rio Araguaia basin in central Brazil. Known in the hobby as L. sp. 'Buckelkopf' before it was described, it grows to around 35 mm SL and is a biparental substrate-spawner. Some populations differ from one another in colour pattern, and 7-8 dorsal-fin rays separate it from all congeners.

Mesonauta insignis
Cichlidae · authority not recorded
Mesonauta insignis is a cichlid from the Orinoco and Negro drainages in Brazil and Venezuela. It looks very similar to M. festivus, and there is some debate that it is the fish sold in aquatic stores as the flag cichlid. Both species are probably sold under that name, depending on where the fish were caught and exported from. A peaceful cichlid, it becomes more aggressive when breeding.
Nanochromis nudiceps
Cichlidae · authority not recorded
Nanochromis nudiceps is a dwarf cichlid from the Cuvette Centrale region of the Democratic Republic of Congo. Rarely imported, it is easily confused with N. parilus, but males lack the barring in the upper caudal fin and have dark-edged body scales, and females have a spotted lower caudal. It needs very soft, acidic water, will not spawn above pH 6.5 and is not recommended for beginners.
Nanochromis parilus
Cichlidae · authority not recorded
Nanochromis parilus is a dwarf cichlid from the Democratic Republic of Congo, found in slow-moving areas of streams. One of the commoner Nanochromis in the hobby, it is easily confused with N. nudiceps, but males show barring in the upper half of the caudal fin and females have an unpatterned lower caudal. A bi-parental cave spawner, it needs soft, acidic water and is best kept in pairs.

Nanochromis transvestitus
Cichlidae · authority not recorded
Nanochromis transvestitus is a dwarf cichlid known only from Lake Mai-Ndombe, a blackwater lake in the Democratic Republic of Congo. The name refers to the female being the more colourful fish, with a red flush to the belly. It lives in rocky areas of the lake, needs very soft, acidic water, will not usually spawn much above pH 6.0 and is not recommended for beginners.

Neolamprologus boulengeri
Cichlidae · authority not recorded
Neolamprologus boulengeri is a small shell-dwelling cichlid endemic to Lake Tanganyika, found along the Tanzanian shoreline in the north of the lake. It lives among scattered rocks and open sand littered with empty snail shells. It is told apart from N. hecqui and Lamprologus kungweensis by the orange border on its dorsal and anal fins, and it will spawn in small caves if no shells are available.

Neolamprologus brevis
Cichlidae · authority not recorded
Neolamprologus brevis is a shell-dwelling cichlid found widely throughout Lake Tanganyika, and one of the commoner shell dwellers in the hobby. Where few snail shells collect, pairs share the same shell. Its territories are usually no more than 6" across but are defended vigorously. It is told apart from the similar Neolamprologus ocellatus by the vertical barring on its flanks.

Neolamprologus marunguensis
Cichlidae · authority not recorded
Neolamprologus marunguensis is a cichlid endemic to Lake Tanganyika, found over rocky shorelines around the southwestern shore of the lake. It has a deeply forked tail and was previously sold as Neolamprologus sp. 'walteri'. Relatively peaceful, it becomes very territorial when breeding and is best kept in a species tank.

Neolamprologus multifasciatus
Cichlidae · authority not recorded
Neolamprologus multifasciatus is a shell-brooding cichlid endemic to Lake Tanganyika, and probably the smallest known cichlid species. It lives in fairly deep water around the shoreline, over soft substrates where the empty shells of snails collect. Each fish defends a territory usually no more than 6" across, and a group kept with more shells than fish will form a colony.

Neolamprologus ocellatusOcellated Shell-dweller
Cichlidae · authority not recorded
The ocellated shell-dweller, Neolamprologus ocellatus, is a small shell-brooding cichlid endemic to Lake Tanganyika. It buries its shell until only the entrance shows and defends it vigorously, sometimes burying neighbouring shells as well to keep other fish out. Males grow much larger than females, and a gold morph has become popular in the hobby. The lack of vertical barring on the flanks separates it from the similar N. brevis.
Neolamprologus signatus
Cichlidae · authority not recorded
Neolamprologus signatus is a shell-brooding cichlid endemic to Lake Tanganyika, known from Moba in DR Congo south to Cape Kapembwa in Zambia. Males and females look very different. Males grow larger and have vertical bars on the flanks, and females have none. Only one male should be kept unless the aquarium is large.

Neolamprologus similis
Cichlidae · authority not recorded
Neolamprologus similis is a small shell-dwelling cichlid endemic to Lake Tanganyika, and one of the less frequently seen shelldwellers in the hobby. It lives around the shoreline over soft substrates where empty snail shells collect, and defends a territory usually no more than 6" across. Light stripes and additional barring on the head and neck separate it from the similar N. multifasciatus.

Neolamprologus speciosus
Cichlidae · authority not recorded
Neolamprologus speciosus is a shell-brooding cichlid endemic to the south-western end of Lake Tanganyika. Very similar to N. ocellatus, it often carries the trade name 'black ocellatus', and it lives alongside N. stappersi in nature. Males are much larger than females, and it breeds quite easily in snail shells that females bury until only the entrance is visible.
Neolamprologus stappersi
Cichlidae · authority not recorded
Neolamprologus stappersi is a shell-brooding cichlid endemic to Lake Tanganyika, found on the Congo side of the lake between Moliro and Kalemie. Originally thought to be a morph of N. ocellatus, it is still occasionally offered as 'pearly ocellatus' and may be seen under the invalid name L. meleagris. It defends its shell and the small territory around it vigorously, and dried foods are sometimes refused.

Pelvicachromis pulcherKribensis
Cichlidae · authority not recorded
The kribensis, Pelvicachromis pulcher, is a cichlid from Nigeria and Cameroon, found in still and slow-moving, heavily vegetated waters. One of the most common cichlids in the hobby since the 1950s, it is almost always captive bred, and farmed fish are far more adaptable to water chemistry than wild ones. A cave spawner that forms monogamous pairs, it is often the first fish bred by newcomers and becomes very territorial when breeding.

Pelvicachromis subocellatusOcellated Kribensis
Cichlidae · authority not recorded
The ocellated kribensis, Pelvicachromis subocellatus, is a cichlid from Nigeria, Gabon and the Democratic Republic of Congo. It inhabits pools and slow-moving streams in coastal areas, some of them brackish. Less commonly seen than other Pelvicachromis, it is available in morphs such as 'Matadi' and 'Moanda', and has a higher, shorter body than its congeners with much lighter spotting in the upper part of the caudal fin.

Pelvicachromis taeniatusStriped Kribensis
Cichlidae · authority not recorded
The striped kribensis, Pelvicachromis taeniatus, is a cichlid from still and slow-moving forest streams and rivers in Nigeria and Cameroon. Over a dozen morphs are available, including 'Dehane', 'Moliwe', 'Lobe' and 'Nigeria Red', and these should not be cross bred if the lines are to stay pure. A more pronounced upper lip, often bright yellow, separates it from congeners, and unlike most Pelvicachromis the males rival the females in colour.
Variabilichromis moorii
Cichlidae · authority not recorded
Variabilichromis moorii is a lamprologine cichlid endemic to the southern part of Lake Tanganyika, living in shallow water around rocky shorelines. All adults are dark, but depending on locality the fry may be dark, yellow or orange. The only known lamprologine that eats filamentous algae, it is often sold as Neolamprologus moorii and is relatively peaceful even when spawning.
Ivanacara adoketaZebra Acara
Cichlidae · authority not recorded
The zebra acara, Ivanacara adoketa, is a cichlid from Brazil that appears to be endemic to the middle and upper rio Negro system. It inhabits dark, shaded rainforest streams where the water is stained brown with humic acids and the pH can be as low as 3.0 or 4.0. Rare in the hobby, it is a bi-parental substrate spawner that uses a cave if available, and its eggs develop only in water of little-to-no detectable hardness.

Altolamprologus calvusCalvus Cichlid
Cichlidae · (Poll, 1978)
The calvus cichlid, Altolamprologus calvus, is a laterally compressed predatory cichlid endemic to the rocky shores and islands of Lake Tanganyika. Its shape lets it enter crevices in the rockwork to prey on eggs, fry and small fish, and its thick scales have serrated edges. Several colour forms from different parts of the lake are regularly available and should be kept apart so they do not hybridise. Wild fish are sensitive to changes in water chemistry.

Altolamprologus compressicepsCompressed Cichlid
Cichlidae · (Boulenger, 1898)
The compressed cichlid, Altolamprologus compressiceps, is a substrate-spawning cichlid endemic to Lake Tanganyika, where it lives among rocky rubble. Its colour pattern varies with locality, and many forms are traded under their own names, such as 'Burundi red fin' and 'black cheek'. Populations should be kept apart and labelled with their collection locality to avoid hybridisation. A smaller, shell-dwelling fish traded as A. sp. compressiceps 'shell' appears to be an undescribed species.

Amatitlania myrnae
Cichlidae · (Loiselle, 1997)
Cryptoheros myrnae is a Central American cichlid from the Atlantic slope of Costa Rica and Panama. It was collected from a river with clear, shallow, swiftly flowing water over sand. Moderately aggressive, especially when breeding, it spawns in caves and breeds quite easily. Males are larger and more brightly coloured, and a spawning female turns black on her lower half with a large copper-coloured spot.
Amphilophus trimaculatusThree Spot Cichlid
Cichlidae · (Günther, 1867)
The three spot cichlid or trimac, Amphilophus trimaculatus, is a large cichlid from western Mexico, Guatemala and El Salvador. It lives mainly in sluggish waters of the Pacific coastal plains, among roots, branches and vegetation over mud and sand. A fairly aggressive fish that grows to around 40 cm, it is believed to be one of the species used to create the flowerhorn hybrid, and both parents guard the eggs and fry. It is still often sold as Cichlasoma trimaculatum.

Andinoacara sp. 'Orinoco'
Cichlidae · authority not recorded
Andinoacara sp. 'Orinoco' is an apparently undescribed cichlid from unspecified localities in the Río Orinoco basin, presumably in Venezuela. It was traded as 'Aequidens' sp. 'Orinoco' and, following Musilová et al. (2009), appears to be a member of Andinoacara. Relatively peaceful for a cichlid of its size, it is a biparental substrate spawner and relatively simple to breed.

Apistogramma agassiziiAgassiz's Dwarf Cichlid
Cichlidae · (Steindachner, 1875)
Apistogramma agassizii is a dwarf cichlid found through much of the Amazon/Solimões basin, from the Río Ucayali in Peru to the Capim River in Brazil. Colour and pattern vary considerably with locality, and numerous ornamental forms have been selectively bred for the trade. It inhabits slower-moving tributaries and creeks where leaf litter collects. Captive-raised fish suit the community aquarium, while wild fish are best kept alone or with small dither fishes.

Apistogramma baenschiA188
Cichlidae · Römer, Hahn, Römer, Soares & Wöhler, 2004
The Inca dwarf cichlid, Apistogramma baenschi, is from tributaries of the lower Río Huallaga in the Amazonian portion of northern Peru. Coded A188 under the DATZ system, it is produced on a commercial basis and is perhaps among the most suitable Apistogramma for those new to dwarf cichlids. Wild fish come from shallow forest tributaries with very soft, tea-stained water and a pH measured between 4.1 and 6.3.

Apistogramma barlowiA174
Cichlidae · Römer & Hahn, 2008
Barlow's dwarf cichlid, Apistogramma barlowi, may be endemic to the Ampiyacu River system, an affluent of the Amazon in northeastern Peru. Adult males have a disproportionately large head with enormous jaws and hypertrophied lips. It is one of only two Apistogramma known to be facultative, biparental, larviphorous mouthbrooders, and apparently favours cool, flowing forest streams (igarapés).

Apistogramma brevis
Cichlidae · Kullander, 1980
Apistogramma brevis is a dwarf cichlid from the Rio Uaupés basin in far northwestern Brazil and the Rio Tiquié in southern Colombia. It has also been recorded in the upper Rio Negro and Rio Orinoco, and inhabits slow-moving blackwater streams where the pH can drop as low as 4.0 or 5.0. Coded A168, it is the type species of the A. brevis group, and breeding is not too difficult if very soft, acidic water can be provided.

Apistogramma cacatuoidesCockatoo Cichlid
Cichlidae · Hoedeman, 1951
The cockatoo cichlid, Apistogramma cacatuoides, is a small cichlid from the upper Amazon basin, from the Ucayali in Peru to the Solimões in Brazil. It lives in slow tributaries, backwaters and creeks where leaf litter collects. Numerous line-bred forms such as 'double red' and 'orange flash' are traded, and captive-raised fish suit a community aquarium, while wild fish are best kept alone or with small dither fishes.

Apistogramma cinilabraAsh Lipped Apisto (A80)
Cichlidae · Romer, Duponchelle, Diaz, Davilla, Sirvas, Catchay and Renno, 2011
The ash lipped apisto, Apistogramma cinilabra, is a cichlid from shallow blackwater backwaters between Iquitos and Nauta in Loreto, Peru. Males carry the namesake ash-grey lips, red pectoral bases and red spots on the chest, and the body is disproportionately high. The description suggests it may be threatened in its native range, though not enough data exist to confirm this, and the emphasis should be on forming a captive population.

Apistogramma commbraeA93
Cichlidae · (Regan, 1906)
The Corumbá dwarf cichlid, Apistogramma commbrae, is widespread in the Paraguay River watershed of Argentina, Bolivia, Brazil and Paraguay. One of the smallest members of the genus, it is told apart with the rest of the A. commbrae complex by a conspicuous double caudal peduncle spot. Its habitats cool seasonally to as low as 16 °C, and it should be kept cooler over winter.

Apistogramma elizabethaeA208
Cichlidae · Kullander, 1980
Apistogramma elizabethae is a dwarf cichlid from the rio Uaupés and adjacent rio Içana, both tributaries of the upper rio Negro in Brazil. Coded A208, it is among the more sought-after Apistogramma in the hobby. Içana fish tend to have more blue on the head than those from the Uaupés, a reddish population is traded as A. elizabethae 'super red', and none of the forms should be mixed in aquaria.

Apistogramma eremnopygeA218
Cichlidae · Ready & Kullander, 2004
Apistogramma eremnopyge (A218) is a dwarf cichlid known only from Loreto region in northeastern Peru, in the Itaya, Nanay and Tapiche drainages. Traded under names including A. sp. 'strawberry', 'red beard' and 'diamante', it has a dark blotch low on the caudal peduncle in both sexes. Pairs can apparently be kept only when other pairs are visible in adjacent tanks, so a group of several males with more females is preferable.

Apistogramma gibbicepsBlackline Apisto
Cichlidae · Meinken, 1969
The blackline apisto, Apistogramma gibbiceps, is a dwarf cichlid from the Rio Branco and middle Rio Negro basins in Brazil. It is identified by a row of short dark marks low on the flank below the lateral band, which show most clearly on a settled fish. Meinken's type series held three species, and A. roraimae from the Rio Branco has been treated as a synonym since 2003.

Apistogramma macmasteri
Cichlidae · Kullander, 1979
Apistogramma macmasteri is a dwarf cichlid known only from the Río Guaytiquía and Río Metica basins in the upper Río Meta system, Colombia. Coded A120 under the DATZ system, it has a similar-looking, possibly conspecific population referred to as A122, and A121 is the ornamental 'red' form. Captive-raised fish are the recommended choice for the community aquarium.

Apistogramma nijsseni
Cichlidae · Kullander, 1979
Known in the trade as the 'panda dwarf cichlid', Apistogramma nijsseni is from tributaries of the Río Ucayali in Loreto Region, northern Peru. Coded A180 under the DATZ system, it inhabits slow-moving blackwater streams and creeks where the pH can drop as low as 4.0 or 5.0 and the substrate is littered with branches and a deep layer of rotting leaves.

Apistogramma norberti
Cichlidae · Staeck, 1991
Apistogramma norberti is a dwarf cichlid from the Río Tahuayo and Río Tamshiyacu, minor Amazon tributaries south of Iquitos in northeastern Peru. Known before its description as A. sp. 'großmaul' or 'bigmouth', and coded A190, its position within the genus is unresolved and it is only tentatively placed in the A. cacatuoides group. It lives in minor jungle streams whose volume changes significantly with the season.

Apistogramma panduro
Cichlidae · Römer, 1987
Apistogramma panduro is a dwarf cichlid from the Río Ucayali drainage and the Río Tahuayo in Loreto Region, northern Peru. Also known as the blue panda cichlid and by the trade name A. sp. 'pandurini', it is told apart from similar species by a lower jaw that extends beyond the upper. It can be quite aggressive towards conspecifics, though pairs often remain monogamous once formed.

Apistogramma pantaloneA186
Cichlidae · Romer, Romer, Soares & Hahn, 2006
The pantaloon cichlid, Apistogramma pantalone, is a small cichlid probably endemic to the Nanay river system in northern Peru. It lives in shallow, hyper-acidic forest streams, and unlike many congeners does not fare well if water parameters deviate far from nature. A facultative mouthbrooder, it has been traded as A. sp. 'Lyretail 1' and is very similar to the closely related A. martini.

Apistogramma paulmuelleriA52
Cichlidae · Römer, Beninde, Duponchelle, García Dávila, Vela Díaz & Renno, 2013
Apistogramma paulmuelleri (A52) is a dwarf cichlid apparently endemic to Loreto, Peru, described from a forest stream near the Iquitos to Nauta road. It has been traded as A. sp. 'Apache', a name also applied to other, non-conspecific Apistogramma. Since 2009 parts of the type locality stream have been degraded by removal of riparian vegetation.

Apistogramma sp. 'breitbinden'A164
Cichlidae · authority not recorded
Apistogramma sp. 'breitbinden' is an undescribed dwarf cichlid from the upper Rio Negro in Brazil, the Venezuelan Orinoco and the Inirida in Colombia. The German name means 'broad-banded' and refers to the uniformly broad suborbital stripe of males. Known in the hobby for several decades, it is often imported as bycatch among shipments of wild-collected A. iniridae, and some populations carry the DATZ codes A164, A165 and A167.

Apistogramma sp. 'Kelleri'
Cichlidae · authority not recorded
Apistogramma sp. 'Kelleri' is an undescribed dwarf cichlid known only from minor jungle tributaries near Leticia, Amazonas department, Colombia. First collected in 2008, it was exported again in 2009 and 2010 as A. sp. 'Jutai' and A. sp. 'diamond face', with a Brazilian collection site the exporter later corrected to Leticia. It has also appeared on trade lists as A. sp. 'Leticia', and belongs to the A. barlowi complex.

Apistogramma steindachneriSteindachner's Apisto
Cichlidae · (Regan, 1908)
Steindachner's apisto, Apistogramma steindachneri, is a dwarf cichlid from the Essequibo, Demerara and other river systems of Guyana and Suriname. It lives in slower-moving tributaries and streams with leaf litter and submerged wood. The form from the Demerara drainage carries the DATZ code A138, and a very similar fish from the Cuyuni basin in eastern Venezuela (A139) may or may not be conspecific.

Apistogramma trifasciataThree-striped Apisto
Cichlidae · (Eigenmann & Kennedy, 1903)
The three-striped apisto, Apistogramma trifasciata, is a dwarf cichlid from the Guaporé, Paraguay and middle Paraná basins. Found in Brazil, Paraguay and Argentina, it lives in sluggish creeks, tributaries and smaller rivers where leaf litter collects. A narrow third stripe from the pectoral-fin insertion to the anal fin helps separate it from congeners. The DATZ code is A204, with possibly conspecific forms from Argentina and the rio Guaporé coded A205 and A206.

Apistogramma viejitaRed Edge Apisto
Cichlidae · Kullander, 1979
The red edge apisto, Apistogramma viejita, is a dwarf cichlid from the upper Meta basin, part of the Orinoco system in Colombia. Many forms of A. macmasteri enter the trade incorrectly labelled viejita. Male A. viejita have a dark top edge to the dorsal fin and A. macmasteri does not. It inhabits shallow, slow-moving shoreline water with abundant riparian and emergent vegetation, often in savannah country.

Aristochromis christyi
Cichlidae · Trewavas, 1935
Aristochromis christyi is a predatory cichlid endemic to Lake Malawi, found throughout the lake but most commonly in intermediate zones. Growing to 300 mm SL, it is not particularly common in the lake or the hobby. Its beak-like mouthparts are adapted for hunting small fish in crevices between rocks, and it also ambushes prey, sometimes rolling onto its side as it approaches then taking it with a fast sideways motion.

Astronotus ocellatusOscar
Cichlidae · (Agassiz, 1831)
The oscar, Astronotus ocellatus, is a large cichlid widely distributed in the Amazon region, recorded from Colombia and Venezuela south to Argentina. It grows to 350 mm SL and typically lives 10 to 20 years, both of which need taking into account before purchase. Most fish on sale come from commercial breeders in Eastern Europe or the Far East, in numerous ornamental strains, and genetic analyses suggest the genus contains additional, morphologically cryptic species.

Aulonocara baenschiNew Yellow Regal Peacock
Cichlidae · Meyer & Riehl, 1985
The new yellow regal peacock, Aulonocara baenschi, is a cichlid endemic to Lake Malawi, known from five sites along the lake's western shoreline. It inhabits intermediate zones where rocky shores give way to sand with scattered rocks, usually at 4 to 6 metres. Also sold as the 'yellow regal cichlid', 'Baensch's peacock', 'sunshine peacock' and 'Nkhomo-Benga peacock', it is most easily told from similar congeners by its steeper, more curved snout.

Aulonocara ethelwynnaeNorthern Aulonocara
Cichlidae · Meyer, Riehl & Zetzsche, 1987
The northern aulonocara, Aulonocara ethelwynnae, is a cichlid endemic to Lake Malawi, known only from Chitande Island and the nearby northwest shore. Quite rarely seen in the hobby, it is most easily distinguished by the chocolate-brown striping of mature males. In intermediate zones, females and immature males form loose schools at around 3 metres while mature males hold territories deeper, at 6 to 7 metres.

Aulonocara hansbaenschiRed Shoulder Peacock
Cichlidae · Meyer, Riehl & Zetzsche, 1987
The red shoulder peacock, Aulonocara hansbaenschi, is a cichlid endemic to Lake Malawi, known from four localities on its southeastern shore. Some authors regard it as a geographical variant of the highly variable A. stuartgranti. It is also sold as the 'firebird cichlid' and 'red peacock'. At Masinje it shows a distinct preference for rocky caves and crevices in 3 to 6 metres of water, where most of the genus forage over sand.

Aulonocara jacobfreibergiMalawi Butterfly
Cichlidae · (Johnson, 1974)
The Malawi butterfly, Aulonocara jacobfreibergi, is a cichlid endemic to Lake Malawi, living where rocky shores give way to sand. One of the larger members of the genus, with males reaching 150 to 170 mm, it was among the first Aulonocara species in the hobby and is also sold as 'Freiberg's peacock' and 'fairy cichlid'. Males react aggressively to fish with a similar colour pattern, so tankmates need choosing with care.

Aulonocara maylandiSulphurhead Peacock
Cichlidae · Trewavas, 1984
The sulphurhead peacock, Aulonocara maylandi, is a cichlid endemic to Lake Malawi, where it occurs in two principal colour forms. Males from West Reef and Eccles Reef, in the southeast of the lake, carry a bright yellow band from the snout along the back and dorsal-fin margin. At Kande Island, off the central-western shore, the stripe is whitish and both sexes have an enlarged lower pharyngeal bone. That population was described as A. maylandi kandeensis, a name still widely used in the hobby.

Aulonocara sp. 'stuartgranti maleri'Sunshine Peacock
Cichlidae · authority not recorded
The sunshine peacock, Aulonocara sp. 'stuartgranti maleri', is a cichlid endemic to the south-west of Lake Malawi around the Maleri Islands. Whether it represents an undescribed species remains unclear, and the vernacular name is confusing because it is based on that of a described taxon: it is often called A. stuartgranti 'Maleri', and the Maleri Islands fish are traded as 'yellow regal peacock'. It resembles A. baenschi but has a straighter head and snout profile and relatively smaller eyes.

Aulonocara sp. 'walteri'Blue-faced Peacock
Cichlidae · authority not recorded
The blue-faced peacock, Aulonocara sp. 'walteri', is a cichlid known only from Chizumulu Island and Likoma Island in Lake Malawi. The confusing trade name has led to it often being referred to incorrectly as 'Aulonocara walteri'. It inhabits the intermediate zones where rocky shores give way to sand, and males hold territories in caves. Males act aggressively towards any fish with a similar colour pattern, and other Aulonocara are best avoided as most can hybridise.

Aulonocara stuartgrantiGrant's Peacock
Cichlidae · Meyer & Riehl, 1985
Grant's peacock, Aulonocara stuartgranti, is a cichlid endemic to Lake Malawi, widely distributed along both the east and west coastlines. Males vary in colour by locality, with blue forms found mostly in the north of the lake and yellow in the south, and many populations are traded under their own names. That variation has caused taxonomic problems: A. baenschi, A. korneliae and A. hueseri were all once considered forms of it. It inhabits the intermediate zones where rocky shores give way to sand.

Benthochromis tricoti
Cichlidae · (Poll, 1948)
Benthochromis tricoti is a deep-water cichlid endemic to Lake Tanganyika, where it lives in open water and feeds on zooplankton. The species is seldom seen in the hobby as it is difficult to collect and ship, and the similar B. horii, described in 2008, had been confused with it and traded under its name. It needs a long tank with the upper two thirds left clear for swimming, and calm tankmates.

Biotodoma cupidoCupid Cichlid
Cichlidae · (Heckel, 1840)
The cupid cichlid, Biotodoma cupido, is a geophagine cichlid from much of the Amazon basin, north to the Essequibo in Guyana and south to Bolivia. Also traded as the 'green-streaked eartheater', it varies in colour pattern and shape by locality, and most traded fish come from around Santarém in Pará state. Unless breeding it is surprisingly peaceful. Its relatively compact body and a dark flank blotch above the upper lateral line separate it from B. wavrini.

Biotodoma wavriniOrinoco Eartheater
Cichlidae · (Gosse, 1963)
The Orinoco eartheater, Biotodoma wavrini, is a geophagine cichlid from the Orinoco and rio Negro basins of Venezuela, Colombia and Brazil. One natural habitat is the Río Cinaruco, a low-nutrient blackwater tributary of the Orinoco. It can be told from B. cupido by its noticeably elongate body and a dark flank blotch on or below the upper lateral line. Unless breeding it is surprisingly peaceful, and trade populations include 'Cuao', 'Orinoco', 'San Antonio' and 'Sipapo Ventuari'.

Biotoecus opercularis
Cichlidae · (Steindachner, 1875)
Biotoecus opercularis is a small geophagine cichlid from the middle Amazon basin in Brazil, including the lower Madeira, Tapajós and Negro. It favours shallow, slow-flowing water over sand with leaf litter and submerged wood, often stained with tannins. Several populations are traded, among them B. sp. 'rio Negro' from the rio Jauaperi and B. sp. 'Santarém' or 'Tapajós', though no scientific evidence shows them to be more than one species. It should not be mixed with other Biotoecus species or populations.

Buccochromis lepturusSlender Tail Hap
Cichlidae · authority not recorded
The slender tail hap, Buccochromis lepturus, is a large cichlid endemic to Lake Malawi, also known as the green lepturus. Adults live in deeper water throughout the lake, though juveniles can be seen in quite shallow water around the shorelines. Its pelagic nature makes it difficult to catch for export, so it is rarely seen for sale. It grows to 400 mm SL, and small fish will end up on the menu.

Buccochromis nototaeniaStripeback Hap
Cichlidae · authority not recorded
The stripeback hap, Buccochromis nototaenia, is a predatory cichlid endemic to Lake Malawi. It hunts juveniles of other species over sandy substrates just off the shoreline, often driving them into shallower water. It is rarely seen in the trade because it retreats at great speed into deeper water at the first sign of threat, which makes it hard to collect.

Callochromis macropsBig-eyed Mouthbrooder
Cichlidae · authority not recorded
The big-eyed mouthbrooder, Callochromis macrops, is a sand-sifting cichlid endemic to Lake Tanganyika, found in the southern part of the lake. It lives over shallow sandy bottoms near rocks, taking in mouthfuls of sand and sifting out invertebrates through the gills. Several geographical colour forms exist and should not be kept together, as they hybridise freely. Males are particularly belligerent towards one another in captivity, so a small tank suits one male with several females.

Chalinochromis sp. 'ndobhoi'
Cichlidae · authority not recorded
Chalinochromis sp. 'ndobhoi' is an undescribed cichlid from a limited stretch of Lake Tanganyika's eastern shore in Tanzania. Also traded as C. sp. 'ndoboi' or 'ndobnoi', it is told apart from C. brichardi and C. popelini by two or three series of irregular dark blotches along the body. It lives among rocky structures, males become highly territorial as they mature, and it should never be mixed with other Chalinochromis because they will hybridise.

Chindongo demasoni
Cichlidae · (Konings, 1994)
Chindongo demasoni is a dwarf mbuna endemic to Lake Malawi, where it occurs around Pombo Rocks off the Tanzanian coast. It hugs rock surfaces more than most mbuna and is often seen swimming on its side or upside down as it explores caves and crevices. One of the most aggressive and territorial mbuna, it will attack fish several times its own size and is not recommended for the beginner. It is still often sold as Pseudotropheus demasoni.

Chindongo elongatusElongate Mbuna
Cichlidae · (Fryer, 1956)
The elongate mbuna, Chindongo elongatus, is a slender cichlid endemic to Lake Malawi, found in Mbamba Bay and Nkata Bay. Over 30 different forms occur in the lake and they hybridise freely, so they should not be mixed in the aquarium. In nature females defend territories containing 'gardens' of algae. One of the most aggressive and territorial mbuna, it is not recommended for the beginner.

Chindongo flavus
Cichlidae · (Stauffer, 1988)
Chindongo flavus is a mbuna endemic to Lake Malawi, recorded only at Chinyankwazi Island and Chinyamwezi Reef. Not especially aggressive for a mbuna, it suits the general mbuna community, but it should not be kept with any member of the C. elongatus complex: the species interbreed and their males clash heavily. Males are far more colourful than females.

Chindongo socolofiPowder Blue Cichlid
Cichlidae · (Johnson, 1974)
The powder blue cichlid, Chindongo socolofi, is a mbuna endemic to Lake Malawi, found along the Mozambique coast between Cobue and Tumbi Point. It is still often sold as Pseudotropheus socolofi. Also known as 'Eduard's mbuna' and 'Pindani', it is one of the most popular Rift Lake cichlids and somewhat peaceful for a mbuna. Both sexes share the same powder blue colouration, which makes it hard to sex. Most fish on sale are tank-bred, and an albino form exists in aquaria.

Chromidotilapia guntheri
Cichlidae · (Sauvage, 1882)
Chromidotilapia guntheri is a mouthbrooding cichlid from coastal drainages of western Africa between Liberia and Cameroon, plus the Niger and Benue. It occurs in a number of geographic forms, with fish from Cameroon tending to show dark blotches on the dorsal fin. A benthophagous omnivore, it sifts mouthfuls of substrate for food, and the male broods the eggs while the female defends the surrounding territory.

Cleithracara maroniiKeyhole Cichlid
Cichlidae · (Steindachner, 1881)
The keyhole cichlid, Cleithracara maronii, is a small cichlid from French Guiana, Guyana, Suriname, the Orinoco delta in Venezuela and Trinidad. It is told apart from relatives by the keyhole-shaped marking on each side of the body, and is one of few fishes whose generic name derives from its aquarium common name. It inhabits slow-moving blackwater streams, is naturally shy and sensitive to deteriorating water quality, and most fish on sale are commercially farmed.
Congochromis dimidiatus
Cichlidae · (Pellegrin, 1900)
Congochromis dimidiatus is a small cichlid of the central Congo basin in the Republic of the Congo and DR Congo, described from Bangui on the Ubangi. Most older aquarium literature knows it as Nanochromis dimidiatus. Its dark flank stripe runs into the caudal fin, which separates it from C. sabinae. Many museum records were identified before the genus was split, so some may belong to other species.

Congochromis sabinae
Cichlidae · (Lamboj, 2005)
Congochromis sabinae is a small cichlid from rainforest streams in the Republic of the Congo, northeast Gabon and northern DR Congo. It was in the hobby before its description under names such as Nanochromis sp. 'Bamanja', 'Genema' and 'Bloody Mary', and continues to be mislabelled N. squamiceps. The dark midlateral stripe stops short of the caudal fin. At the type locality the water was stained reddish brown, with a pH of 4.0.

Copadichromis azureus
Cichlidae · authority not recorded
Copadichromis azureus is an Utaka cichlid endemic to Lake Malawi, found in the southern part of the lake around the Maleri and Mbenji Islands. It shoals in open water around rocky shores and reefs at 20-30 metres. Dozens of colour forms exist, usually sold with the collection locality attached, and it is sometimes seen under the invalid name Haplochromis chrysonotus, which causes confusion with C. chrysonotus. Peaceful even by Copadichromis standards, it should not be kept with Mbuna.

Copadichromis borleyi
Cichlidae · authority not recorded
Copadichromis borleyi is an Utaka cichlid endemic to Lake Malawi, where it shoals over rocky areas and isolated boulders at 5-20 metres. One of the species most commonly encountered in the hobby, it is available in several colour morphs, often divided into yellow and red finned forms and sold with the collection locality attached, such as 'Kadango'. It is also sold under invalid names such as Haplochromis 'red Kadango'. Other Copadichromis should be left out, as they can hybridise.
Copadichromis chrysonotus
Cichlidae · authority not recorded
Copadichromis chrysonotus is an Utaka cichlid endemic to Lake Malawi, collected between Karonga and Monkey Bay in deep, open water. Among Copadichromis it is the best-known open-water spawner. It is not seen often in the hobby, and most fish imported under the name turn out to be C. azureus sold as 'Haplochromis chrysonotus'. Males are paler on the dorsal surface than the uniformly blue C. azureus, while the females are virtually indistinguishable.

Copadichromis ilesi
Cichlidae · authority not recorded
Copadichromis ilesi is an Utaka cichlid endemic to Lake Malawi, collected at Gome, Nkata Bay and Monkey Bay around rocky shores and reefs. Described in 1999, it was previously sold as Copadichromis 'virginalis kajose' and is a close relative of C. virginalis, with which it shoals at Gome Rock. Its females are sandy brown, and males grow larger than C. virginalis and lack the red stripe in the dorsal fin.

Copadichromis virginalis
Cichlidae · authority not recorded
Copadichromis virginalis is an Utaka cichlid endemic to the northern end of Lake Malawi, shoaling in open water around rocky shores and reefs. Numerous colour forms exist and are usually sold with the collection locality attached, such as 'Gold Nkanda'. It shoals alongside the similar C. ilesi at some locations, but males have a red stripe along the dorsal fin and the females are silver. Peaceful even by Copadichromis standards, it should not be combined with Mbuna.

Crenicara latruncularium
Cichlidae · authority not recorded
Crenicara latruncularium is a South American cichlid from the Rio Guaporé in western Brazil and the Rio Mamoré in Bolivia. Fairly peaceful unless a pair is breeding, it can be kept with tetras, rasboras, small catfish and other small peaceful fish. Spawning takes place in a cave, and the female guards it and will drive away any fish that come near, including the male.

Cryptoheros nanoluteus
Cichlidae · (Allgayer, 1994)
Cryptoheros nanoluteus is a small Central American cichlid endemic to the Guarumo river basin in northwestern Panama. Sometimes called the 'yellow convict', it lives in well-oxygenated, moderate to fast-flowing lowland streams. It is not as aggressive as some others in the genus, though territorial when breeding. A substrate-spawner forming temporary pair bonds, both sexes turn bright yellow during courtship.

Cynotilapia afraDogtooth Cichlid
Cichlidae · authority not recorded
The dogtooth cichlid, Cynotilapia afra, is a Mbuna endemic to Lake Malawi, found around the rocky shoreline. It is easily confused with some Pseudotropheus but has unicuspid teeth, and its black flank bars continue into the dorsal fin. The many colour forms should not be mixed, as they interbreed. Belligerent and very aggressive towards its own species, it is one of the hardier Mbuna and a good choice for the newcomer to these fish.

Cyprichromis leptosomaSardine Cichlid
Cichlidae · (Boulenger, 1898)
The sardine cichlid, Cyprichromis leptosoma, is a peaceful open-water cichlid endemic to Lake Tanganyika. In nature it congregates in shoals of several thousand, feeding on zooplankton, and it occurs in several geographical morphs, each in blue and yellow-tailed forms. Fish sold as C. leptosoma sp. 'Jumbo' grow larger than the 'true' leptosoma and are likely a different species, and none of these forms should be housed together because they can hybridise.
Cyprichromis microlepidotusSmallscale Cyprichromis
Cichlidae · (Poll, 1956)
The smallscale Cyprichromis, Cyprichromis microlepidotus, is an open-water cichlid endemic to Lake Tanganyika, mostly at the northern end of the lake. Quite a rarity in the hobby, it lives in huge mixed groups with other Cyprichromis species and the similar Paracyprichromis. Several geographical variants exist, each with a yellow and a blue-tailed form, and they should never be mixed in the aquarium because they will interbreed.

Cyrtocara mooriiMalawi Blue Dolphin
Cichlidae · authority not recorded
The Malawi blue dolphin, Cyrtocara moorii, is a large, peaceful cichlid endemic to Lake Malawi, found mainly over shallow sandy areas. Formerly named Haplochromis moorii, it shoals in nature and follows substrate-sifting species such as Fossorochromis rostratus to feed on morsels stirred up from the sand. Males reach at least 25 cm, and it should not be kept with boisterous species such as mbuna.

Darienheros calobrensisRedspot Cichild
Cichlidae · (Meek & Hildebrand, 1913)
The redspot cichlid, Darienheros calobrensis, is a large cichlid native to coastal rivers draining Panama's Pacific slope. It lives mostly in lakes, ponds and slow parts of rivers, swimming among the crevices of submerged rocky walls and banks. It has been placed in Cichlasoma and Amphilophus, and is occasionally listed under Astatheros. A belligerent, territorial species, it can share a tank with other large cichlids only in a very large aquarium.

Dicrossus filamentosusLyretail Checkerboard Cichlid
Cichlidae · authority not recorded
The lyretail checkerboard cichlid, Dicrossus filamentosus, is a cichlid from the Rio Orinoco in Colombia and Venezuela and the Brazilian Rio Negro. Formerly placed in Crenicara, it shares Dicrossus with D. maculatus, which looks similar but lacks the lyretailed caudal fin. Shy by nature, it needs a well-planted, dimly lit tank with plenty of hiding places, and very soft, acidic water to breed.

Dicrossus maculatusSpadetailed Checkerboard Cichlid
Cichlidae · Steindachner, 1875
The spadetailed checkerboard cichlid, Dicrossus maculatus, is a cichlid from the Rio Tapajós, Rio Maués and nearby areas of the Brazilian Amazon. Not commonly available in the trade, it is sometimes mistaken for D. filamentosus. A challenge to breed, it needs extremely acidic, very soft water for the eggs to hatch, and a brooding female herds her fry around the tank with signals from her ventral fins.

Dimidiochromis compressicepsMalawi Eye-Biter
Cichlidae · authority not recorded
The Malawi eye-biter, Dimidiochromis compressiceps, is a predatory cichlid endemic to Lake Malawi, where it is widely distributed. An ambush predator, it hides head-down among Vallisneria beds, its laterally compressed body and dark stripe from snout to tail helping to conceal it. Despite its name it mainly hunts small fish, and eye-eating happens infrequently in nature and rarely, if ever, in aquaria with well-fed specimens.

Ectodus descampsiiDescamp's Strange-Tooth Cichlid
Cichlidae · authority not recorded
Descamp's strange-tooth cichlid, Ectodus descampsii, is a shy cichlid endemic to Lake Tanganyika, between Moliro and Utinta Bay. It inhabits open water over sand and is gregarious, so a group of at least eight is recommended. An undescribed fish, Ectodus sp. 'north', is sometimes imported under this name and has a smaller adult size and a black dorsal spot towards the front of the fin (in the middle in E. descampsii).

Eretmodus cyanostictusStriped Goby Cichlid
Cichlidae · Boulenger, 1898
The striped goby cichlid, Eretmodus cyanostictus, is one of the goby cichlids endemic to Lake Tanganyika, living in the surge zone of rocky shores. It scrapes algae from the rocks with specialised teeth and has a swim bladder rendered useless to reduce buoyancy. Delicate in aquaria, it needs the highest water quality, a higher pH than many Tanganyikans and a specialised diet, and is not recommended for beginners.

Etroplus canarensisCanara Pearlspot Cichlid
Cichlidae · Day, 1877
The Canara pearlspot cichlid, Etroplus canarensis, appears to be endemic to the Kumaradhara-Netravati river system in southern Karnataka, India. Also known as the banded chromide or 'roman numeral' cichlid, it lives only in oxygen-rich fresh water, unlike its euryhaline relatives. Unmanaged collection raised concerns over its status, and commercial breeding in Southeast Asia has since reduced the pressure on wild stocks. Sexual maturity takes around 24 months.

Fossorochromis rostratus
Cichlidae · authority not recorded
Fossorochromis rostratus is a large, sand-sifting cichlid endemic to Lake Malawi, most common over shallow sandy substrates. When startled it may bury itself, and a sand substrate is essential since gravel may injure it. A very fast, active swimmer, it needs open water and should not be kept with boisterous species such as mbuna. Shoals of Cyrtocara moorii follow feeding groups in the wild to take the morsels they stir up.

Geophagus abalios
Cichlidae · López-Fernández & Taphorn, 2004
Geophagus abalios is a cichlid from black and clear water tributaries of the río Orinoco in Venezuela, across the Llanos and south to the Casiquiare. One of the more commonly-traded members of the genus, it is rarely sold under the correct name and usually misidentified as G. altifrons or G. surinamensis. Juveniles are available cheaply because it is one of the few Geophagus bred commercially. Vertically split anterior flank bars separate it from the very similar G. brokopondo.

Geophagus altifrons
Cichlidae · Heckel, 1840
Geophagus altifrons is a large cichlid from the middle-to-lower Amazon basin in Brazil, including the Xingu, Tapajós, Madeira, Negro and Purus. Despite being the type species it is among the most frequently-misidentified members of the genus, partly because populations from the Orinoco, the Guianas and the Tocantins are now species in their own right. In adults the dark midlateral marking is reduced to 1-2 scales or absent, a feature unique to the species, but juveniles are very difficult to identify.

Geophagus argyrostictus
Cichlidae · Kullander, 1991
Geophagus argyrostictus is a cichlid known only from the rio Xingu system in Brazil, including its major tributary the rio Iriri. It belongs to the five species outside the G. surinamensis group, all with a complete infraorbital stripe, and fish over 70 to 80 mm SL develop silvery reflective scales on the anterior flanks. Markedly more aggressive than most congeners, it is a substrate-spawner and does best in a group of 5-8.

Geophagus brachybranchus
Cichlidae · Kullander & Nijssen, 1989
Geophagus brachybranchus is a cichlid from the Nickerie and Courantyne drainages of Suriname, also reported from Guyana and Venezuela. Generally rare in the aquarium hobby, it appears to be one of the commoner species in Australia, where it is often called the 'black-throated eartheater'. The largest wild specimen recorded measured 138 mm, but it is known to reach 180 to 200 mm in captivity.

'Geophagus' brasiliensisPearl Cichlid
Cichlidae · (Quoy & Gaimard, 1824)
The pearl cichlid, Geophagus brasiliensis, comes from Atlantic-draining river systems of eastern and southern Brazil and Uruguay. It belongs to the 'G.' brasiliensis group, which still needs definitive classification. Colour and body shape vary with locality, and some coastal lagoon populations have evolved a degree of salt tolerance. Fish sold as Gymnogeophagus australis in Europe are more often this species, and non-native populations exist in several countries.

Geophagus brokopondo
Cichlidae · Kullander & Nijssen, 1989
Geophagus brokopondo is a cichlid endemic to the Suriname River drainage in Suriname, first known only from the Brokopondo Reservoir. It is very rarely traded, since collection of fishes for commercial purposes is not common in Suriname. Six solid vertical bars on each flank, the last covering the whole caudal peduncle, separate it from the very similar G. abalios.

Geophagus camopiensisOiapoque Eartheater
Cichlidae · Pellegrin, 1903
The Oiapoque eartheater, Geophagus camopiensis, is a cichlid from the Oyapock basin on the Brazil and French Guiana border and the Approuague. Poorly known in the hobby, it is occasionally available through specialist breeders and retailers. A low E1 scale count and usually seven anal-fin rays are shared only with G. parnaibae, which may indicate a close relationship. A larger lateral marking and light caudal-fin spots separate the two.

'Geophagus' crassilabrisPanamanian Eartheater
Cichlidae · Steindachner, 1876
The Panamanian eartheater, Geophagus crassilabris, is a cichlid endemic to the Pacific and Atlantic slopes of central and eastern Panama. Rarely traded, it belongs to the 'G.' steindachneri group with 'G.' steindachneri and 'G.' pellegrini, and adults have a more reddish colour pattern than either, especially in the fins. Adult males are aggressive towards one another, and a single male is best kept with two or more females.

Geophagus dicrozoster
Cichlidae · López-Fernández & Taphorn, 2004
Geophagus dicrozoster is a cichlid from tributaries of the río Orinoco in Venezuela, extending to the Casiquiare and the headwaters of the Negro. Commonly traded but rarely under the correct name, it is usually sold as G. altifrons or G. surinamensis, and it is one of the few Geophagus bred commercially. Seven flank bars, the fourth and fifth meeting in a 'Y', and a relatively elongate profile identify it. It appears restricted to acidic blackwater.

'Geophagus' iporangensis
Cichlidae · Haseman, 1911
Geophagus iporangensis is a cichlid known only from the rio Ribeira de Iguapé basin, on the border of São Paulo and Paraná states in southern Brazil. A member of the 'G.' brasiliensis group, it reaches 90 to 100 mm, a more manageable size than some related species. Juveniles are readily confused with others in the group, but adults are smaller with comparatively few reflective blue scales. It is not common in the aquarium hobby.

Geophagus megasema
Cichlidae · Heckel, 1840
Geophagus megasema is a cichlid from the upper rio Madeira basin, recorded from the Mamoré and Guaporé drainages in Bolivia and Brazil. Very rare in the aquarium hobby, it has been collected, bred and distributed by some private collectors. It has no dark preopercular or infraorbital markings, no bars on the flanks and a relatively large, roundish midlateral marking.

Geophagus neambi
Cichlidae · Lucinda, Lucena & Assis, 2010
Geophagus neambi is a cichlid from the mid-to-upper rio Tocantins in Brazil, to which it may be endemic. It was in the hobby several years before it was described, traded as G. sp. aff. altifrons 'Tocantins', G. sp. 'Tocantins' or G. sp. 'rio Areoes', and aquarium fish are apparently collected in the rio Das Mortes basin. The 8-9 flank bars are normally visible only when the fish are stressed or spawning.

Geophagus parnaibae
Cichlidae · Staeck & Schindler, 2006
Geophagus parnaibae is a comparatively small cichlid endemic to the rio Parnaíba drainage in Piauí and Maranhão, northeastern Brazil. Only described in 2006, it has been in the hobby since at least 1988, traded as G. sp. 'Parnaíba'. The undescribed G. sp. 'Pindaré' is sometimes labelled with the Parnaíba name but is totally distinct. Maroon and whitish horizontal bands in the caudal fin help identify it.

'Geophagus' pellegriniYellowhump Eartheater
Cichlidae · Regan, 1912
The yellowhump eartheater, Geophagus pellegrini, is a cichlid from the Chocó and Antioquia departments of northwestern Colombia. The species is rare in the hobby, and most fish traded under its name are forms of 'G.' steindachneri or occasionally 'G.' crassilabris. Its yellowish colour pattern separates it from those two, the other members of the 'G.' steindachneri group. It is an ovophilous, maternal mouthbrooder.

Geophagus proximus
Cichlidae · (Castelnau, 1855)
Geophagus proximus is a large cichlid from the Amazon system in Peru and Brazil, from the río Ucayali along the Solimões-Amazon to the rio Trombetas. Rare in the hobby, its name is often attached to shipments of other Geophagus species. It has a dark preopercular marking, no bars on the flanks and a large, roughly oblong midlateral marking. It is found mostly in the lower reaches of rivers and in floodplain lakes, favouring clear and black water.

Geophagus sp. 'orange head'
Cichlidae · authority not recorded
Geophagus sp. 'orange head' is an undescribed cichlid confined to the lower rio Tapajós in Brazil, including its tributary the rio Arapiuns. Now one of the more readily available members of the genus, it has suffered from commercial breeders who do not cull deformed fry. Two forms exist, one misleadingly traded as G. sp. 'Araguaia orange head', and the orange on the head is most extensive in dominant adult males.

Geophagus sp. 'Pindaré'
Cichlidae · authority not recorded
Geophagus sp. 'Pindaré' is an undescribed cichlid known only from the rio Pindaré in Maranhão state, north-eastern Brazil. It appears to belong to the G. surinamensis group and is quite easily identified by its deep head and body and proportionately large eye. The trade name G. sp. 'Pindare' (Parnaíba) is confusing, because G. sp. 'Parnaíba' is now described as G. parnaibae. Parts of the Pindaré have been heavily degraded by siltation.

'Geophagus' steindachneriRed Hump Eartheater
Cichlidae · Eigenmann & Hildebrand, 1922
The red hump eartheater, Geophagus steindachneri, is a cichlid from the Magdalena and Sinú drainages in Colombia and the Río Limón basin in Venezuela. It lends its name to the 'G.' steindachneri group, whose taxonomic placement is unresolved. Colour forms vary with locality, and some appear on trade lists under the synonym Geophagus hondae. The species is an ovophilous, maternal mouthbrooder, and territorial males are best kept with three or more females.

Geophagus taeniopareius
Cichlidae · Kullander & Royero, 1992
Geophagus taeniopareius is a cichlid from the Venezuelan upper Río Orinoco, recorded from tributaries including the Caura, Cataniapo and Ocamo. Known in Germany as the 'Wangenstrich-Erdfresser' (cheek-stripe eartheater), it has been in the hobby since the late 1970s. A dark stripe runs from the eye to the corner of the opercle. It is markedly more aggressive than most congeners and spawns on the substrate.

Geophagus winemilleri
Cichlidae · López-Fernández & Taphorn, 2004
Geophagus winemilleri is a cichlid from southern Venezuela and probably northern Brazil, recorded from the upper Río Negro, Río Siapa and Casiquiare. It is rare in the hobby, though other species are sometimes sold under its name. A dark preopercular marking and four ventrally-inclined bars on each flank help identify it, and it may be restricted to acidic blackwater.

Haplochromis latifasciatus
Cichlidae · authority not recorded
Haplochromis latifasciatus is a cichlid found only in Lake Kyoga and the adjacent Lake Nawampasa, satellite lakes north of Lake Victoria in Uganda. Critically endangered in nature and possibly extinct in Lake Kyoga, it is quite easily bred in aquaria. It is often sold under the invalid name Astatotilapia latifasciata, or as Haplochromis sp. 'zebra obliquidens' or H. obliquidens, a Victorian species from a different lake. A maternal mouthbrooder, it must not be kept with Victorian Mbipi as they may hybridise.

Herichthys carpintisPearlscale Cichlid
Cichlidae · (Jordan & Snyder, 1899)
The pearlscale cichlid, Herichthys carpintis, is a large cichlid from northern Mexico, found in lagoons around the mouth of the Panuco drainage. It is often mislabelled as the Texas or green Texas cichlid, though the Texas cichlid is a different species, H. cyanoguttatus. Not difficult to keep or breed, it digs, can be territorial and sometimes downright aggressive, and males may turn on females when spawning.

Heros notatusSpotted Severum
Cichlidae · authority not recorded
The spotted severum, Heros notatus, is a cichlid endemic to the Rio Negro basin in Brazil, where it inhabits blackwater rivers and tributaries. Rarely seen, it is occasionally offered by specialist cichlid or South American dealers. Not a particularly aggressive species, though males may squabble with conspecifics, it suits a larger cichlid community, and much smaller fish will almost certainly be eaten.

Hypselecara coryphaenoidesRio Negro Chocolate Cichlid
Cichlidae · authority not recorded
The Rio Negro chocolate cichlid, Hypselecara coryphaenoides, comes from rivers in Brazil and Venezuela including the Negro, Trombetas and Tapajós. It is much rarer in the trade than H. temporalis, from which it differs in a more elongate body, darker colour and a flank blotch on and above the lateral line. It lives in sluggish forest tributaries with dark, acidic water.

Hypsophrys nicaraguensisNicaragua Cichlid
Cichlidae · authority not recorded
The Nicaragua cichlid, Hypsophrys nicaraguensis, is a Central American cichlid from Nicaragua and Costa Rica, found in lakes and slow-moving rivers. Also known as the spilotum or moga, it exists in several colour forms depending on collection locality, and has been hybridised with the convict cichlid, Archocentrus nigrofasciatus. Relatively peaceful for its size but territorial, it is best kept as a mated pair and spawns in caves.
Iodotropheus sprengeraeRusty Cichlid
Cichlidae · authority not recorded
The rusty cichlid, Iodotropheus sprengerae, is a dwarf mbuna endemic to Lake Malawi, around the islands of Boadzulu, Chinyankwazi and Chinyamwezi. One of the least aggressive and smallest mbuna in the hobby, it is easily outcompeted by bigger species and can be kept in smaller tanks. It is sometimes confused with certain populations of Labidochromis vellicans, and as a polygamous maternal mouthbrooder is easily bred.

Julidochromis dickfeldiBrown Julie
Cichlidae · authority not recorded
The brown julie, Julidochromis dickfeldi, is a cave-spawning cichlid endemic to Lake Tanganyika. It inhabits shallow rocky shorelines in the southwest of the lake, between Kapampa and Ndole. There is some speculation over whether it belongs in Julidochromis, since it has a pointed snout, blue edging to the dorsal and anal fins and very dark horizontal stripes. It is aggressive towards conspecifics and should be kept as a pair.

Julidochromis reganiRegan's Julie
Cichlidae · authority not recorded
Regan's julie, Julidochromis regani, is the largest species of Julie, a cichlid endemic to Lake Tanganyika. It reaches 30 cm but rarely grows beyond 15 cm in aquaria, and is the least aggressive member of the genus. Less of a rock dweller than its congeners, it is more often found over sand with scattered rocks, though it still spawns in rocky caves. It may also be seen for sale as the striped or convict julie.

Labeotropheus fuelleborniFuelleborn's Cichlid
Cichlidae · authority not recorded
Fuelleborn's cichlid, Labeotropheus fuelleborni, is an mbuna endemic to Lake Malawi, found in turbulent shallow water around rocky shorelines. An overhanging snout and chisel-shaped teeth let it graze algae from rocks other species cannot reach. It occurs in many colour forms, including orange and orange blotch females, and forms should not be mixed as they may hybridise. It is aggressive and territorial and should not be kept with peacocks or utaka.

Labeotropheus trewavasaeTrewavas' Cichlid
Cichlidae · authority not recorded
Trewavas' cichlid, Labeotropheus trewavasae, is an mbuna endemic to Lake Malawi, living around rocky shorelines and islands with heavy algal growth. It is told from the similar L. fuelleborni by its more slender body and smaller adult size, and has been recorded at greater depths. Over 40 colour forms are recorded in nature, and they should not be mixed in aquaria as they may hybridise. It is very aggressive towards its own kind.

Labidochromis sp. "perlmutt"Pearly Labidochromis
Cichlidae · authority not recorded
Labidochromis sp. 'perlmutt' is an mbuna endemic to Lake Malawi, known from Higga Reef and Mbamba Bay, where it lives in deep rocky zones. Discovered in 1995, it takes its name from the German for 'mother of pearl', after the pearly white colouration of adults, and is also sold as Labidochromis sp. 'yellow bar'. The Mbamba Bay Island population closely resembles L. caeruleus and the two hybridise freely, so they should not be kept together.

Lamprologus congoensisCongo Lamprologus
Cichlidae · authority not recorded
The Congo lamprologus, Lamprologus congoensis, is a cichlid from fast-moving stretches of the Congo River in the Republic of Congo and DR Congo. It resembles Steatocranus species in shape and lifestyle, with a streamlined body, strong pectoral fins and a much-reduced swimbladder that makes it less buoyant. Aggressive and territorial, it should not be kept with other cichlids. It spawns polygamously in caves, and males develop a prominent nuchal hump.

Lestradea perspicax
Cichlidae · authority not recorded
Lestradea perspicax is a cichlid endemic to the northern end of Lake Tanganyika, where it inhabits shallow water over sandy substrates. There is some confusion over the taxonomy of this species and its congener L. stappersi, which was originally regarded as a subspecies of perspicax and is now considered distinct. Very peaceful, and a maternal mouthbrooder in nature, it is not often seen in the hobby.

Lugubria johannaRed-finned Pike Cichlid
Cichlidae · (Heckel, 1840)
The red-finned pike cichlid, Lugubria johanna, is a large pike cichlid that ranges over much of northern South America. It is known from the Orinoco, Essequibo, Oyapock and Approuague basins among others, mostly in faster moving rivers and streams, and a number of colour forms have developed across its range. Growing to 30 cm, it can be aggressive, especially towards its own kind, and will eat any fish small enough to be considered food.

Lugubria strigataStriped Pike Cichlid
Cichlidae · (Günther, 1862)
The striped pike cichlid, Lugubria strigata, is a large pike cichlid from the lower Amazon basin in Brazil, away from the main river itself. One of the more commonly available pike cichlids in the UK, it is often bought by fishkeepers unaware that it grows to around 40 cm. It can be aggressive, especially towards conspecifics, and is reported to be susceptible to hole in the head disease.

Lugubria tigrinaTiger Pike Cichlid
Cichlidae · (Ploeg, Jégu & Ferreira, 1991)
The tiger pike cichlid, Lugubria tigrina, is a pike cichlid known only from the Rio Trombetas in the Brazilian Amazon. It is rarely seen in the UK hobby, and males carry the prominent black spots and stripes behind the common name. Growing to around 30 cm, it can be aggressive towards conspecifics and will eat any fish small enough to be considered food.

Maylandia callainosCobalt Blue Zebra
Cichlidae · authority not recorded
The cobalt blue zebra, Maylandia callainos, is an mbuna endemic to the north of Lake Malawi. Formerly Pseudotropheus callainos and Metriaclima callainos, it is still named as one of these by many sources and has been sold as Pseudotropheus zebra 'pearly'. It is very easily confused with similar species such as M. estherae and M. benetos. Aggressive and territorial, it can be combined with other mbuna but not with peaceful species such as peacocks or utaka.

Maylandia estheraeRed Zebra
Cichlidae · (Konings, 1995)
The red zebra, Maylandia estherae, is a mbuna endemic to Lake Malawi, found along the Mozambique and Malawi coasts from Metangula to Gome. Only described as a distinct species in 1995, it was previously regarded as a morph of Maylandia zebra. Some males are blue and females orange, though orange and OB males occur depending on locality. Not especially aggressive for a mbuna, it will hybridise, so colour forms should never be kept together. It is still often sold as Pseudotropheus estherae.

Maylandia fainzilberiGoldbreast Zebra
Cichlidae · (Staeck, 1976)
The goldbreast zebra, Maylandia fainzilberi, is a large mbuna endemic to Lake Malawi, found on the north-western coast from Chirwa Island to Usisya and on the Tanzanian and Mozambican shores. It has also been grouped in Metriaclima and Pseudotropheus. It has extra rows of teeth, with the bicuspid rows extending unusually far back into the mouth. Growing to around 175 mm and one of the most aggressive and territorial mbuna, it is not a good species for the beginner.

Maylandia greshakeiRed Top Ice Blue Zebra
Cichlidae · authority not recorded
The red top ice blue zebra, Maylandia greshakei, is an mbuna endemic to Lake Malawi, found only around Makokola in the southeast of the lake. It inhabits the upper parts of rocky reefs next to open water, leaving the reef to feed on phytoplankton. Formerly Pseudotropheus greshakei and Metriaclima greshakei, it is still named as either of these by many sources. Aggressive and territorial, it can be combined with other mbuna but not with peaceful species such as peacocks or utaka.
Maylandia lombardoiKennyi
Cichlidae · (Burgess, 1977)
Known in the hobby as the kennyi, Maylandia lombardoi is a mbuna endemic to Lake Malawi, confined to the Mbenji Islands and Nkhomo Reef. In a reverse of the usual mbuna pattern, dominant males are yellow and females blue, though subdominant males often turn blue and brooding females can turn yellow. One of the most aggressive and territorial mbuna, it is not recommended for the novice, and commercially produced fish tend to be of lower quality than wild ones. It is still often sold as Pseudotropheus lombardoi.
Maylandia zebraZebra Mbuna
Cichlidae · authority not recorded
The zebra mbuna, Maylandia zebra, is a cichlid endemic to Lake Malawi, where it inhabits rocky zones around shores, reefs and islands. One of the more aggressive mbuna, it is not a fish for a general community aquarium. It should be kept in a Malawi tank at around three females to each male.
Mchenga flavimanus
Cichlidae · authority not recorded
Mchenga flavimanus is a peaceful utaka cichlid endemic to Lake Malawi, known from Nkhata Bay and the islands of Chitande, Mbowe and Kande. It shoals in large numbers in open water over sand and isolated boulders at 5 to 20 metres, feeding on zooplankton. Still listed as a Copadichromis in much of the literature, it suits a peaceful Lake Malawi community, but should not be kept with mbuna or with other Mchenga or Copadichromis, since they can hybridise.

Melanochromis auratusGolden Mbuna
Cichlidae · authority not recorded
The golden mbuna, Melanochromis auratus, is a cichlid endemic to Lake Malawi, common down the western coast and along the southern end of the lake. One of the most aggressive and territorial mbuna, it is not recommended for the beginner. Mature males turn dark, unlike the golden females and juveniles, and older females often darken until they superficially resemble males. Other Melanochromis should not be kept with it, as they may hybridise.

Melanochromis chipokae
Cichlidae · authority not recorded
Melanochromis chipokae is an mbuna endemic to Lake Malawi, found only around Chindunga Rocks, a reef just off the island of Chipoka. One of the predatory 'pike auratus' group, it eats fry as well as crustaceans and algae. Females and juvenile males are easily confused with M. auratus, but have a more pointed mouth and a fully striped caudal fin. Arguably the most aggressive mbuna, it is not recommended for the beginner.

Mesonauta festivusFlag Cichlid
Cichlidae · authority not recorded
The flag cichlid, Mesonauta festivus, is a cichlid recorded from Venezuela, Peru, Brazil, Bolivia and Paraguay. It lives in well planted, slower-moving waters. Flag cichlids are found in most aquatic stores, but the fish usually sold under the name is M. insignis. It is peaceful, but becomes more aggressive when breeding.

Mikrogeophagus altispinosusBolivian Ram
Cichlidae · (Haseman, 1911)
The Bolivian ram, Mikrogeophagus altispinosus, is a cichlid endemic to the upper rio Madeira basin in Bolivia and Brazil. Also traded as 'hi-fin ram' and 'Bolivian butterfly', it is larger and less colourful than M. ramirezi and lacks its blue iridescent markings, and it is arguably a better choice for less-experienced aquarists. A soft, sandy substrate is essential, and it needs pristine water quality.

Mikrogeophagus ramireziRam
Cichlidae · (Myers & Harry, 1948)
The ram, Mikrogeophagus ramirezi, is a dwarf cichlid from the llanos of the Rio Orinoco drainage in Venezuela and Colombia. Among the more popular dwarf cichlids in the hobby, it is produced commercially in huge numbers, and ornamental strains such as 'gold', 'long-finned' and 'balloon' tend to be genetically weak and short-lived. Wild fish are of superior stock but more demanding, and it requires pristine water quality.
Mylochromis melanonotusHaplochromis Yellow-black Line
Cichlidae · authority not recorded
Known in the trade as 'Haplochromis yellow-black line', Mylochromis melanonotus is a predatory cichlid endemic to Lake Malawi. Rarely imported, it caused confusion because some individuals have a shovel-like lower jaw. Ad Konings found wild populations with and without it, and Platygnathochromis and M. semipalatus are now regarded as synonyms. A sandy substrate is essential, and it will eat small fish.

Neolamprologus callipterus
Cichlidae · authority not recorded
Neolamprologus callipterus is a shell-brooding cichlid endemic to Lake Tanganyika, in which males grow many times larger than females. Males must be large enough to carry snail shells and females small enough to fit inside them, and in nature the nests of large males can measure several metres across. Males are territorial and aggressive, and the species is not very popular in the hobby because of its relatively drab colouration and aggressive nature.

Neolamprologus fasciatusBarred Lamprologus
Cichlidae · authority not recorded
The barred lamprologus, Neolamprologus fasciatus, is a predatory cichlid endemic to Lake Tanganyika, living mainly in rocky areas. Its laterally compressed body lets it enter crevices in the rockwork to prey on invertebrates, eggs, fry and small fish. It is sometimes confused with juvenile Altolamprologus but has a blue-green iris and a more elongate body.

Neolamprologus kungweensisOcellated Shell-dweller
Cichlidae · (Poll, 1956)
Neolamprologus kungweensis is a territorial cichlid endemic to Lake Tanganyika, where it lives over open mud flats at 10 to 50 m and digs tunnels in the firm mud. It can be recognised by the gold on top of the eye and a black spot towards the back of the dorsal fin. It uses snail shells only occasionally in the wild. In the aquarium it breeds in them, and it needs a deep soft substrate to dig in and more empty snail shells than there are fish. It is not often seen in the hobby.

Neolamprologus lemairiiLemaire's Lamprologus
Cichlidae · authority not recorded
Lemaire's lamprologus, Neolamprologus lemairii, is a piscivorous cichlid endemic to Lake Tanganyika, growing to around 25 cm. An ambush predator, it lies motionless on the substrate so that its mottled pattern makes it appear dead to the smaller fish that come to investigate. It is unsuited to the general aquarium and should be kept alone, with tankmates too large to be considered food. In nature it spawns in caves.

Neolamprologus tretocephalusFive-barred Lamprologus
Cichlidae · authority not recorded
The five-barred lamprologus, Neolamprologus tretocephalus, is an aggressive cichlid endemic to Lake Tanganyika. It lives in relatively shallow water over rocky areas and intermediate zones with scattered rocks. Five vertical bars on the flanks, against six in N. sexfasciatus, separate the two species. Its aggression, particularly when breeding, rules it out of the general Tanganyikan community.

Nimbochromis livingstonii
Cichlidae · (Günther, 1894)
Nimbochromis livingstonii is a predatory cichlid endemic to Lake Malawi, where it is fairly widespread. An ambush predator, it lies motionless on the substrate and its mottled pattern makes it appear dead to the smaller fish that come to investigate. This 'playing dead' behaviour gave it the local name 'Kaligono', loosely 'sleeper'. It is not a fish for the general Malawi cichlid community.

Nimbochromis venustusVenustus
Cichlidae · (Boulenger, 1908)
The venustus, Nimbochromis venustus, is a predatory cichlid endemic to Lake Malawi, where it is fairly widespread. Also sold as 'giraffe hap' or 'giraffe cichlid' after its pattern of irregular dark markings, it is an ambush predator that lies motionless on the substrate to take smaller fish. It is not a fish for the general Malawi cichlid community.

Ophthalmotilapia boops
Cichlidae · authority not recorded
Ophthalmotilapia boops is a mouthbrooding cichlid endemic to Lake Tanganyika, found only along the southern Tanzanian coastline. It inhabits rocky drop-offs and slopes. A relatively boisterous species needing a lot of space for its size, it becomes withdrawn unless it is the dominant species in the tank, and males are aggressive towards each other. It was the first species placed in the genus Ophthalmotilapia.

Ophthalmotilapia nasuta
Cichlidae · authority not recorded
Ophthalmotilapia nasuta is a mouthbrooding cichlid endemic to Lake Tanganyika, found on its northwestern, southwestern and southern coasts. A fleshy, proboscis-like growth extending beyond the upper lip, more prominent in males, separates it from the rest of the genus. Several geographical morphs exist, including 'Kachese', 'Mpimbwe', 'Cape Tembwe' and 'Chamba', and these should not be mixed as they hybridise freely.

Ophthalmotilapia ventralis
Cichlidae · authority not recorded
Ophthalmotilapia ventralis is a mouthbrooding cichlid endemic to Lake Tanganyika, found around most of the lake's coastline. It exists in well over 20 colour morphs, which hybridise freely and should not be mixed. In nature only the largest dominant males build nests, holding territories that may measure several metres across, while subdominant males and females shoal together.

Orthochromis stormsi
Cichlidae · authority not recorded
Orthochromis stormsi is a cichlid from fast-moving, well-oxygenated stretches of the Congo River in the Democratic Republic of Congo. Its swimbladder is much reduced, so it is less likely to be swept away by the current, and in the aquarium it spends most of its time on the substrate, moving in a characteristic 'hopping' fashion. It was previously classified as Schwetzochromis stormsi and is still named as such by many sources.

Paracyprichromis brieni
Cichlidae · authority not recorded
Paracyprichromis brieni is a deep-water cichlid endemic to Lake Tanganyika, where it is quite widespread. Males hold territories under rocky overhangs and are often seen hanging upside down beneath them, while females stay in open water above the rocks. It is easily confused with P. nigripinnis, its only congener, but has smaller eyes and a slimmer, more elongate body, and it quickly loses its best colouration under bright lighting or with boisterous tankmates.

Paracyprichromis nigripinnis
Cichlidae · (Boulenger, 1901)
A deep-water cichlid endemic to Lake Tanganyika, Paracyprichromis nigripinnis is easily confused with P. brieni, its only congener. It has larger eyes and a slightly rounder, stockier body than that species. Males hold territories under rocky overhangs and can often be seen hanging upside down beneath them. Several colour morphs exist that hybridise if mixed, and the fish loses its best colouration under bright lighting or with boisterous tankmates.

Paretroplus damii
Cichlidae · Bleeker, 1868
Paretroplus damii is a cichlid endemic to northwestern Madagascar, around Lake Pambilao. Moderately aggressive and growing to around 30 cm, it is best kept in groups with similarly sized cichlids of similar temperament. It digs, so plants need to be used with care.

Petrochromis famula
Cichlidae · authority not recorded
Petrochromis famula is a cichlid endemic to Lake Tanganyika, found in both the north and the south of the lake in shallow water over rocky bottoms. Its highly specialised mouthparts form a rasping 'plate' for scraping algae from rock, so the diet in captivity should be high in fibre and low in protein. Like others in the genus it has a nasty reputation, though aggression is directed primarily towards conspecifics.

Placidochromis electraDeepwater Hap
Cichlidae · authority not recorded
The deepwater hap, Placidochromis electra, is a cichlid endemic to Lake Malawi, living over sandy bottoms usually below 7 metres. In nature it feeds on invertebrates stirred up by digging substrate feeders such as Taeniolethrinops praeorbitalis. The common name dates from when it was thought to live only in much deeper water. A very gentle species, it is unsuited to a mbuna community, and its colour forms should not be kept together as they may hybridise.

Protomelas fenestratusFenestratus
Cichlidae · authority not recorded
Known as the fenestratus, Protomelas fenestratus is a cichlid endemic to Lake Malawi, found in the northern and southwestern parts of the lake. It inhabits rocky shorelines and the sandy zones beyond them, feeding by blowing sediment from rocks and taking what it uncovers. A gentle species unsuited to the boisterous mbuna community, it should not be kept with P. taeniolatus or Protomelas sp. 'steveni taiwan reef', as they may hybridise.

Protomelas pleurotaenia
Cichlidae · authority not recorded
Protomelas pleurotaenia is a cichlid endemic to Lake Malawi, known from Nkhata Bay and Monkey Bay, where it lives in vegetation between rock and sand. It feeds by blowing at the top layer of the substrate, usually sand, and eating the invertebrates it uncovers. Rare in the hobby, it is gentle and unsuited to the mbuna community, though it becomes territorial when breeding.

Protomelas sp. steveni "Taiwan reef"
Cichlidae · authority not recorded
Protomelas sp. 'steveni taiwan reef' is an undescribed cichlid endemic to Lake Malawi, found at Taiwan Reef, Higga Reef and Mbamba Bay Island. Often sold as a subspecies of P. fenestratus, it is thought to be distinct, and adult males are told from P. fenestratus and P. taeniolatus by their bright red anal fin. Males hold territories on flat rock deeper than 20 metres, and in nature these can measure 5 or 6 feet across.

Protomelas taeniolatus
Cichlidae · authority not recorded
Protomelas taeniolatus is a cichlid endemic to Lake Malawi, where it is widespread over rocky areas of shallow, clear water. Very similar to P. fenestratus, it is one of the more popular Protomelas, and its colour forms include 'Red Empress', 'Super Red Empress' and 'Blue Fire'. Some of these may be reclassified as distinct species, as they reach different maximum sizes. Tougher than its congeners, it can even be kept with mbuna.

Pseudetroplus maculatusOrange Chromide
Cichlidae · (Bloch, 1795)
The orange chromide, Pseudetroplus maculatus, is a euryhaline cichlid native to peninsular India and Sri Lanka. It mostly inhabits brackish estuaries, coastal lagoons and the lower reaches of rivers, and can be kept in fresh or brackish water so long as acidic conditions are avoided. Wild examples are rarely seen in the hobby, where selectively bred strains traded as 'red' or 'yellow' chromide are widely available.

Pseudocrenilabrus nicholsi
Cichlidae · authority not recorded
Pseudocrenilabrus nicholsi is a small mouth-brooding cichlid from the Democratic Republic of Congo, found in ponds, creeks and drainage ditches. Rarely seen in the hobby, it is a pugnacious little fish, and males are very aggressive towards one another, so a single male is best kept with several females. Some males develop long extensions to the ventral fins.

Pseudocrenilabrus philanderSouthern Mouth-Brooder
Cichlidae · authority not recorded
The southern mouth-brooder, Pseudocrenilabrus philander, is a cichlid found in eleven countries from the Democratic Republic of Congo to South Africa. It lives in streams, lakes, ponds and sinkholes, and some populations exist in slightly brackish conditions. Three subspecies are recognised, but as many as 11 distinct populations may exist and these should not be mixed in aquaria. Not often seen in the hobby, it appears to travel badly and losses are common.

Pseudotropheus cyaneorhabdos
Cichlidae · (Bowers & Stauffer, 1997)
Pseudotropheus cyaneorhabdos is an mbuna endemic to Lake Malawi, known from one locality on the northeastern shore of Likoma Island. Formerly known as Melanochromis 'maingano', it is sometimes incorrectly sold as 'electric blue' johanni. Dominant males are bluish overall, where the similar P. johannii has more black patterning. Aggressive and territorial, it should not be kept with Melanochromis, as they may hybridise.

Pseudotropheus johannii
Cichlidae · Eccles, 1973
Pseudotropheus johannii is an mbuna endemic to Lake Malawi, found in shallow rocky coastal areas around Masinje Rocks and Cape Ngombo. Males are blue-black with bright blue striping and females orange. The blacker dominant males separate it from the bluer P. cyaneorhabdos, and it is sometimes sold as 'electric blue johanni'. Less aggressive than most Melanochromis, it can be housed with similarly-sized mbuna. It is still often sold as Melanochromis johanni.

Pseudotropheus tropheops tropheops
Cichlidae · authority not recorded
Pseudotropheus tropheops tropheops is a mbuna endemic to Lake Malawi, where it occurs between the Maleri Islands and Chinyamwezi Rocks. One of three subspecies, it has many colour forms, and none of the subspecies or their morphs should be mixed in aquaria since they hybridise. It browses at a characteristic angle of around 45°, and is relatively peaceable but able to stand up for itself in most mbuna communities.

Pterophyllum leopoldiRoman Nose Angelfish
Cichlidae · (Gosse, 1963)
The roman nose angelfish, Pterophyllum leopoldi, is a cichlid from the lower Rio Negro in Brazil and the Rupununi and Essequibo basins of Guyana. It can be told from other members of the genus by up to 11 vertical stripes, a dark patch over the operculum and the roman nose that gives it its name. Reportedly one of the more aggressive species in the genus towards conspecifics, it should be kept in a group of four or more to prevent bullying.

Pundamilia nyererei
Cichlidae · (Witte-Maas & Witte, 1985)
Pundamilia nyererei is a maternally mouthbrooding cichlid endemic to Lake Victoria, recorded only from the southern part of the lake in Tanzania. It is mostly restricted to rocky, littoral habitats around islands. At least 11 populations are known and male colour varies with locality, so fish are labelled with collection details to avoid hybridisation in aquaria. Males are aggressive and can kill other males if the tank lacks cover.

Pungu maclareni
Cichlidae · authority not recorded
Pungu maclareni is a maternally mouthbrooding cichlid endemic to Lake Barombi Mbo, a small volcanic crater lake in Cameroon. Enlarged jaw muscles and small teeth allow it to tear chunks from freshwater sponges, its characteristic diet. It is considered critically endangered because of its tiny range, habitat destruction, introduced species and overfishing, and is correspondingly rare in the hobby.

Reganochromis calliurus
Cichlidae · authority not recorded
Reganochromis calliurus is a cichlid endemic to Lake Tanganyika, where it usually swims at 60 metres depth or more over sand or mud. Its deep-water lifestyle makes it difficult to collect, and it is rarely seen in the hobby. A peaceful biparental mouthbrooder, it should be kept in pairs and not with boisterous species such as mbuna.

Rocio octofasciataJack Dempsey Cichlid
Cichlidae · (Regan, 1903)
The Jack Dempsey cichlid, Rocio octofasciata, is native to the Atlantic slope of Central America in Mexico, Belize, Guatemala and Honduras. Its name apparently comes from the American heavyweight boxer, for its 'strong facial features' and pugnacious nature. Tankmates must be too large to be viewed as prey. A bright blue strain, the 'electric blue Jack Dempsey', tends to stay smaller and may be less aggressive.

Sarotherodon melanotheron melanotheronBlack Chin Tilapia
Cichlidae · authority not recorded
The black chin tilapia, Sarotherodon melanotheron melanotheron, is a salt-tolerant cichlid from coastal western Africa. Its main habitat is estuarine water, especially mangrove areas. One of five subspecies of S. melanotheron, it is a paternal mouthbrooder. It has been introduced for aquaculture, and thriving populations exist in parts of Asia, Europe and the USA.

Satanoperca acuticepsSharphead Eartheater
Cichlidae · (Heckel, 1840)
The sharphead eartheater, Satanoperca acuticeps, is a cichlid from the central Amazon basin in Brazil, including the lower rio Negro and rio Branco. Relatively rare in the trade, it is sometimes confused with S. daemon and S. lilith but has three dark flank blotches (vs. two in S. daemon, one in S. lilith). Unless breeding it is surprisingly peaceful, and it is very rarely bred in aquaria.

Satanoperca leucostictaWhitespot Eartheater
Cichlidae · (Müller & Troschel, 1849)
The whitespot eartheater, Satanoperca leucosticta, is a cichlid from the Guiana Shield in Guyana, Suriname, eastern Venezuela and northern Brazil. Farmed in several countries, it is frequently available in the ornamental trade. It is often confused with S. jurupari but is easily recognised by the prominent white spots or vermiform markings on the sides of the head. A larvophilous maternal mouthbrooder, it has been bred in aquaria.

Satanoperca mapiritensis
Cichlidae · (Fernández-Yépez, 1950)
Satanoperca mapiritensis is an eartheater cichlid native to the lower Río Orinoco basin in northern Venezuela, including the ríos Caura and Caroní. Uncommon in the aquarium trade, its name is frequently misapplied to S. leucosticta and similar, unidentified forms. Adults have white spots and vermiculations on the head, most intense on the operculum, and pale orange lips. Genetic research suggests it may turn out to be conspecific with S. jurupari and S. rhynchitis.

Satanoperca rhynchitis
Cichlidae · Kullander, 2012
Satanoperca rhynchitis is an eartheater cichlid known only from the Oyapock, Approuague and other river systems of French Guiana. Previously referred to S. jurupari, it was known in the trade as S. sp. 'red lips', and live adults have red lips. Red-lipped fish from Amapá in Brazil appear intermediate between the two, and whether they are hybrids, a distinct species or part of a cline is still unclear.

Saxatilia albopunctataWhite-spotted Pike Cichlid
Cichlidae · (Pellegrin, 1904)
The white-spotted pike cichlid, Saxatilia albopunctata, is a pike cichlid from Guyana, Suriname and French Guiana. Its range runs from the Demerara to the Approuague, in slow-moving forest streams, tributaries and pools over sandy substrates, dimly lit by overhanging vegetation. An aggressive species, it can be kept with other large cichlids or on its own, and it grows to about 20 cm, though usually no more than 15 cm in aquaria.
Saxatilia proteusProteus Pike Cichlid
Cichlidae · (Cope, 1872)
The Proteus pike cichlid, Saxatilia proteus, is one of the smaller pike cichlids, known from Ecuador, Peru and Brazil. It is occasionally offered for sale and more than makes up for its size in aggression, especially towards conspecifics. It will eat any fish small enough to be considered food, so suits a tank of larger cichlids or a species-only set-up.

Sciaenochromis fryeriElectric Blue Hap
Cichlidae · authority not recorded
The electric blue hap, Sciaenochromis fryeri, is a non-mbuna cichlid endemic to Lake Malawi, found along rocky shorelines and the sandy zones beyond. It was previously imported and classified as Sciaenochromis ahli, and is still named as such in much of the literature. Males of every morph are blue and differ only in the fins, and the morphs should not be mixed because they will hybridise. Highly piscivorous in nature, it should not be kept with mbuna.

Steatocranus casuariusBlockhead Cichlid
Cichlidae · authority not recorded
The blockhead cichlid, Steatocranus casuarius, is a rheophilic cichlid from the Lower Congo River and its tributaries, Democratic Republic of Congo. Its swimbladder is modified to reduce buoyancy, and in the aquarium it spends most of its time resting on the substrate or in caves, moving with short 'hopping' motions. A monogamous cave spawner, it should be kept in pairs, and both parents guard the fry for up to three months.

Stomatepia pindu
Cichlidae · authority not recorded
Stomatepia pindu is a cichlid endemic to Lake Barombi Mbo, a small volcanic crater lake in Cameroon. Its tiny range, water removal for the nearby town of Kumba, deforestation, introduced species and overfishing mean it is considered critically endangered, and it is correspondingly rare in the hobby. It can change colour rapidly, turning pure black when in good condition and particularly when spawning.

Taeniacara candidi
Cichlidae · authority not recorded
Taeniacara candidi is a dwarf cichlid from Brazil, ranging from the lower Rio Negro along the Amazon as far as the Rio Tapajós. It needs very specific water parameters and is seen as a challenge even by experienced keepers, commonly sitting at the bottom of the tank for a day or more after a water change. Said to be one of the most aggressive dwarf cichlids, it has a slimmer body than most Apistogramma, and the female guards the fry very aggressively.

Tanganicodus irsacae
Cichlidae · Poll, 1950
Tanganicodus irsacae is a goby cichlid endemic to the northern part of Lake Tanganyika, living among pebbles and rocks in water under 1 metre deep. In this surge zone it scrapes algae from the rocks. Quite delicate in aquaria, it needs the highest water quality, a higher pH than many Tanganyikans and a relatively specialised diet, and it is aggressive towards its own kind. A bi-parental mouthbrooder, it is difficult to breed.

Telmatochromis vittatus
Cichlidae · authority not recorded
Telmatochromis vittatus is a lamprologine cichlid endemic to Lake Tanganyika, found in open water near rocky areas at 5 to 20 metres. Similar in lifestyle to Julidochromis species, it suits the smaller Tanganyikan community. It is told from T. brichardi and T. bifrenatus by its larger size, smaller eyes and more rounded nose, and should be kept as a pair because it is aggressive towards conspecifics.

Thorichthys meekiFiremouth Cichlid
Cichlidae · Brind, 1918
The firemouth cichlid, Thorichthys meeki, is a Central American cichlid from Mexico's Atlantic slope and the Yucatán south into Belize and Guatemala. A popular aquarium fish for a long time, it is almost always commercially raised. It is easily identified by the bright red or orange underside of the head, which is more pronounced in adults. It is not especially aggressive but becomes territorial when breeding.

Tilapia guinasana
Cichlidae · authority not recorded
Tilapia guinasana is a cichlid endemic to Lake Guinas, a deep sinkhole lake in Namibia, and is considered critically endangered. Groundwater extraction for agriculture is reducing the lake's water. With no natural predators there, the fish exist in many distinct colour forms, and captive breeding is encouraged, with the lines kept pure. In nature it grazes algae from the rocky walls of the lake.

Tramitichromis intermedius
Cichlidae · authority not recorded
Tramitichromis intermedius is a sand-dwelling cichlid endemic to Lake Malawi, widespread in the south of the lake. It sifts sediment-rich sand or mud for food, so a soft sandy substrate is essential. Species like this can be delicate, and small, regular water changes are a necessity. The genus differs from Lethrinops only in part of the lower jaw dentition, and this species is likely to be moved to another genus.

Trematocranus placodonSnail-Crusher Hap
Cichlidae · authority not recorded
The snail-crusher hap, Trematocranus placodon, is a large cichlid endemic to Lake Malawi, where it inhabits shallow water. A molluscivore, it feeds mainly on snails, crushing their shells with specially developed pharyngeal teeth. It suits the larger Malawian community but is not often seen for sale. Males are territorial and aggressive towards one another.

Trichromis salviniSalvini
Cichlidae · (Günther, 1862)
Salvin's cichlid, Trichromis salvini, is a Central American cichlid native to eastern parts of southern Mexico, Guatemala and Belize. It has a well-deserved reputation for aggression, especially when breeding, and will prey on any fish it can fit in its mouth. It does not need a huge tank, with males reaching around 6 inches and females 4.5, and a true pair is best obtained by growing on six juveniles. It is still often sold as Cichlasoma salvini.

Tyrannochromis macrostomaBig-Mouth Hap
Cichlidae · authority not recorded
The big-mouth hap, Tyrannochromis macrostoma, is a large predatory cichlid endemic to Lake Malawi, living in shallow rocky areas. An ambush predator, it often attacks prey while swimming upside-down, and its reverse countershading (a belly darker than its back) is thought to make it harder to spot. Mbuna are its natural diet, and juveniles are easily confused with T. nigriventer.

Vieja argenteaSilver Cichlid
Cichlidae · authority not recorded
The silver cichlid, Vieja argentea, is a large Central American cichlid that appears to be endemic to the River Usumacinta drainage in Mexico. Also called the white cichlid, it is aggressive, especially towards conspecifics. It may be kept with other tough Central American cichlids if enough rock and bogwood forms territories for all, but there is no guarantee of success.

Vieja fenestrata
Cichlidae · authority not recorded
Vieja fenestrata is a large cichlid endemic to Mexico, occurring in and between the rivers Papaloapán and Chachalacas. It predominantly inhabits clear lakes with sandy or muddy substrates and beds of aquatic plants. Not all that common in the UK hobby, it is often confused with the more commonly available V. synspila, and is moderately aggressive.

Wallaciia compressicepsCompressiceps Dwarf Pike Cichlid
Cichlidae · (Ploeg, 1986)
The compressiceps dwarf pike cichlid, Wallaciia compressiceps, is a small pike cichlid known only from the lower Rio Tocantins basin in Brazil. It swims a great deal and can be very quick and very aggressive, so it needs a larger aquarium than its size suggests, and anything half its size will be seen as food. A number of hobbyists have found it very difficult to spawn without target fish in the aquarium.

Xenotilapia flavipinnisYellow Sand Cichlid
Cichlidae · authority not recorded
The yellow sand cichlid, Xenotilapia flavipinnis, is a bi-parental mouthbrooder endemic to Lake Tanganyika, where groups swim over sandy substrates. In nature the pair bond lasts only for the breeding season. In aquaria it can last much longer, with the pair remaining in their territory and defending it even when not spawning. A gentle substrate-sifter, it needs sand, a group of 6-10 and peaceful Tanganyikan tankmates, and it is very sensitive to deteriorating water conditions.

Xenotilapia simaBig-Eyed Xenotilapia
Cichlidae · authority not recorded
The big-eyed xenotilapia, Xenotilapia sima, is a cichlid endemic to Lake Tanganyika, where it is found in large groups over sandy substrates. Rarely seen in the hobby, it feeds like the South American Geophagus species, sifting sand through its gills for invertebrates, so a sand substrate is essential. A peaceful and skittish maternal mouthbrooder, it should be kept in a group of 6-10 with peaceful Tanganyikan species and never with mbuna.

Acarichthys heckeliiThreadfin Acara
Cichlidae · (Müller & Troschel, 1849)
The threadfin acara, Acarichthys heckelii, is a cichlid from the northern Amazon basin in Colombia, Peru and Brazil and the Essequibo in Guyana. The only member of its genus, it grows to around 200 mm and digs incessantly, and it is susceptible to deteriorating water quality. Some adults show sudden, extreme aggression towards conspecifics that can kill weaker fish, and the problem decreases as tank and group size increase.

Aequidens tetramerusSaddle Cichlid
Cichlidae · (Heckel, 1840)
The saddle cichlid, Aequidens tetramerus, is a cichlid found across much of northern South America, from the Amazon and Orinoco basins to the Guianas. The type species of its genus, it occurs in several colour forms, and fish from Ecuador and Peru are sought after for the red or orange colouration on the lower head and belly. As currently recognised it is likely to represent a group of related fishes, some of which may be described as distinct species.

Amatitlania nigrofasciataConvict Cichlid
Cichlidae · (Günther, 1867)
The convict cichlid, Amatitlania nigrofasciata, is a Central American cichlid native from Guatemala to Panama. One of the most ubiquitous fish in the hobby, it is hardy and very easily bred, but aggressive and territorial, becomes violent when breeding and is best kept in a species tank. Pink, long-finned and marbled forms exist, and it has been introduced to several countries including the USA and Australia.

Amphilophus citrinellusMidas Cichlid
Cichlidae · (Günther, 1864)
The midas cichlid, Amphilophus citrinellus, is a large cichlid from Nicaragua and Costa Rica, found in lakes, ponds and slow stretches of rivers. It is often confused with the red devil, A. labiatus, but has a bigger nuchal hump and a more thick-set build. One of the most belligerent cichlids, it needs careful handling with any tankmate, including its own kind. Intentional hybridisation with other species has given rise to the parrot cichlid and the flowerhorn.

Amphilophus labiatusRed Devil Cichlid
Cichlidae · (Günther, 1864)
The red devil cichlid, Amphilophus labiatus, is a large cichlid endemic to Lakes Nicaragua and Managua in Nicaragua, living near submerged rocks. It is often confused with the midas cichlid, A. citrinellus, and the two have been hybridised in the hobby so much that a purebred fish of either can be hard to find. Wild fish are mostly grey, and the colour forms in the trade come from breeding those with orange or red patterning. It is one of the most aggressive cichlids kept.

Andinoacara pulcherBlue Acara
Cichlidae · (Gill, 1858)
The blue acara, Andinoacara pulcher, is a cichlid native to Trinidad and Tobago and parts of Venezuela. It occupies a variety of habitats, from murky still waters to clear streams. A mainstay of the hobby for many years, it is one of the easiest substrate-spawning cichlids to breed. Captive breeding has narrowed the gene pool, so most fish in the hobby are pale imitations of wild ones, and some are hybrids with related species. It was previously known as 'Aequidens' pulcher.

Apistogramma mendeziA220
Cichlidae · Römer, 1994
Apistogramma mendezi is a dwarf cichlid from the lower rio Negro basin in northwestern Brazil, found in blackwater tributaries and flooded forest. Populations coded A220, A221 and A222 may be conspecific and differ in colour pattern, particularly the orientation of the caudal-fin markings. Most collections for the trade appear to come from further upstream, around Santa Isabel do Rio Negro or São Gabriel da Cachoeira.

Cichlasoma bolivienseBolivia Cichlid
Cichlidae · authority not recorded
The Bolivia cichlid, Cichlasoma boliviense, is a cichlid from the Rio Mamoré, Rio Guaporé and Madre de Dios drainages of Bolivia and Peru. It lives in shallow pools and along slow-moving shorelines and grows to around 11 cm. Not commonly seen in the hobby, it is less aggressive than many Central American cichlids but suits only a community of medium to large fish, and it rearranges the decor to suit itself.
Cincelichthys bocourtiChisel-tooth cichlid
Cichlidae · (Vaillant & Pellegrin, 1902)
The chisel-tooth cichlid, Cincelichthys bocourti, is a Central American cichlid from Lake Izabal and other Atlantic drainages of Guatemala and Belize. Described in 1902, it did not appear in the trade until wild fish were collected by American aquarists in 1994. Males reach at least 30 cm, and it is aggressive and territorial, so tankmates need choosing with care in a very large tank.

Etroplus suratensisGreen Chromide
Cichlidae · (Bloch, 1790)
The green chromide, Etroplus suratensis, is a euryhaline cichlid from peninsular India and Sri Lanka, growing to 350 mm SL. It mostly inhabits brackish estuaries, coastal lagoons and lower river reaches. Not especially popular in the hobby, it is an important food fish, and some populations have crashed through over-exploitation. In Sri Lanka's Negombo Lagoon Pseudetroplus maculatus has been seen acting as its cleaner while also eating its eggs and fry.

Gymnogeophagus balzaniiParaguay Eartheater
Cichlidae · authority not recorded
The Paraguay eartheater, Gymnogeophagus balzanii, is a cichlid from the Rio Paraná basin in Brazil, Paraguay and Argentina, and the Rio Uruguay. It is found away from the main river channels in sluggish tributaries and creeks. A sand-sifting, delayed maternal mouthbrooder, it is recommended only to the specialist able to give it the specific conditions it needs, and males can be very intolerant of other cichlids. Colour forms vary with locality.

Hemichromis elongatusFive Star General
Cichlidae · authority not recorded
The five star general, Hemichromis elongatus, is a highly aggressive cichlid recorded from Guinea, Cameroon, Angola, Namibia, Botswana and Zimbabwe. The common name comes from the row of five dark markings along its flanks. A piscivore, it eats any fish it can fit into its mouth, does not tolerate conspecifics outside a pair and is best kept in a species tank. The patchy recorded range suggests it has been misidentified in places or occurs in more countries.

Julidochromis marlieriMarlier's Julie
Cichlidae · authority not recorded
Marlier's julie, Julidochromis marlieri, is a rock-dwelling cichlid endemic to Lake Tanganyika, also sold as the chequered julie. It swims hugging the rock surfaces at any angle, and is found in fairly deep water along rocky shorelines. Adults are very belligerent towards one another, so unless the tank is huge it should be kept as a pair. Several geographical morphs are available, and no two species or morphs of Julidochromis should be kept together as they may hybridise.

Neolamprologus helianthusSunflower Lamprologus
Cichlidae · authority not recorded
The sunflower lamprologus, Neolamprologus helianthus, is a cichlid endemic to Lake Tanganyika, described from Kamakonde on the southwestern shore. A member of the 'Brichardi complex', it is told apart from the others by its overall yellow-orange patterning and v-shaped cheek marking. Species in the complex hybridise freely and should not be mixed in aquaria.

Neolamprologus leleupiLemon Cichlid
Cichlidae · (Poll, 1956)
The lemon cichlid, Neolamprologus leleupi, is a cichlid endemic to Lake Tanganyika, found over rocky shorelines in the south of the lake. It is not as easy to maintain as its popularity suggests, being intolerant of conspecifics and sensitive to deteriorating water conditions. The darker N. l. melas lives alongside the yellow form in nature, an example of polychromatism.

Neolamprologus olivaceous
Cichlidae · authority not recorded
Neolamprologus olivaceous is a cichlid endemic to Lake Tanganyika, where it is found only in Luhanga Bay. A member of the so-called 'Brichardi complex', it hybridises freely with the others and should not be mixed with them in aquaria. The two curved markings on the gill cover distinguish it within the complex, and Konings (1993) proposed that it may be synonymous with N. pulcher.

Neolamprologus savoryiStriped Brichardi
Cichlidae · authority not recorded
The striped brichardi, Neolamprologus savoryi, is a rock-dwelling cichlid endemic to Lake Tanganyika. A member of the so-called 'Brichardi complex', it hybridises freely with the others and should not be mixed with them in aquaria. Its pattern of vertical bars distinguishes it within the complex. An aggressive, territorial species, it is best kept in a species tank.

Neolamprologus sexfasciatusSix-barred Lamprologus
Cichlidae · authority not recorded
The six-barred lamprologus, Neolamprologus sexfasciatus, is a predatory cichlid from the southern part of Lake Tanganyika. It occurs only between Cape Tembwe and Karema, in shallow rocky areas and intermediate zones. Several geographical morphs are available, including 'Sambia' and 'Kipili', varying in base colour from blue to yellow to white. Its aggressive and predatory nature rules it out of the general Tanganyikan community, and only a single pair should be kept.

Oreochromis alcalicusSoda Cichlid
Cichlidae · (Hilgendorf, 1905)
The soda cichlid, Alcolapia alcalica, is endemic to Lake Natron in Tanzania, a shallow soda lake full of hot, alkaline springs. The lake runs at pH 9.5-10.5 and 32-43.5 °C, and though captive fish can be acclimatised to more normal conditions, this must happen slowly, with the pH kept above 8.0 and the temperature at 28 °C or more. Exceptionally rare in the hobby, it excretes urea where most fish excrete ammonia, and periodically gulps air at the surface.
Oreochromis grahamiGraham's Soda Cichlid
Cichlidae · (Boulenger, 1912)
Graham's soda cichlid, Alcolapia grahami, is endemic to Lake Magadi in Kenya, a shallow soda lake full of hot, alkaline springs. It lives around the spring inlets and lagoons of the shoreline in water of pH 9.5-10.5 at 32-43.5 °C, and excretes urea where most fish excrete ammonia. Exceptionally rare in the hobby, it can be acclimatised slowly to more normal conditions, but the pH should not drop below 8.0 or the temperature below 28 °C.

Pelvicachromis humilisYellow Kribensis
Cichlidae · authority not recorded
The yellow kribensis, Pelvicachromis humilis, is a cichlid from Sierra Leone, Liberia and Guinea, and the largest known species in its genus. Rare in the hobby, it is seen in several morphs including 'Guinea' and 'Liberia red', some of which may eventually be described as distinct species. It is more elongate than its relatives, with a comparatively long snout, and is aggressive towards conspecifics, so only a single pair should be kept unless the tank is very large.

Pseudocrenilabrus multicolorDwarf Egyptian Mouth-brooder
Cichlidae · authority not recorded
The dwarf Egyptian mouth-brooder, Pseudocrenilabrus multicolor, is a small cichlid from Egypt, Sudan, Uganda, Rwanda, Kenya and Tanzania. One of the first cichlids to be spawned in captivity, it has been in the hobby for over a century and breeds easily as a maternal mouth-brooder. The two subspecies, P. m. multicolor and P. m. victoriae, differ in colour and pattern and should not be kept together, to prevent hybridisation.

Pseudotropheus sp. 'acei'
Cichlidae · authority not recorded
Pseudotropheus sp. 'acei' is an undescribed mbuna endemic to the western side of Lake Malawi, around Nkhata Bay, Senga Bay and Karonga. In nature it feeds on algae and other organisms growing on submerged wood, the only known mbuna to do so exclusively, and gathers in schools around branches and logs. Relatively peaceful and easily bred, it is sometimes sold as Gephyrochromis acei, and colour forms such as 'yellow tail' and 'white tail' should not be kept together.

Steatocranus tinanti
Cichlidae · (Poll, 1939)
Steatocranus tinanti is a rheophilic cichlid from around Malebo Pool in the River Congo, Democratic Republic of Congo. It has a confused taxonomic history, having been classified in Gobiochromis and then Leptotilapia, and further revision is likely since it differs in behaviour and morphology from other Steatocranus. It inhabits rapids and turbulent water, digs shallow pits along the shorelines and moves by 'hopping' around the aquarium floor.

Symphysodon aequifasciatusDiscus
Cichlidae · Pellegrin, 1904
The discus, Symphysodon aequifasciatus, is a cichlid from the Amazon in Colombia, Peru and Brazil. It ranges down the Rio Solimões and the main Amazon from the Rio Putumayo to the Tocantins drainage, keeping to slow-moving tributaries and forest pools where it schools in deep, sheltered water around tree roots and rocks. Wild fish reach around 14 cm, and discus are very shy, skittish fish that need plenty of cover.

Tropheus brichardi
Cichlidae · authority not recorded
Tropheus brichardi is a cichlid endemic to the northern end of Lake Tanganyika, found in shallow water around rocky shorelines. Not a good species for the beginner, it is very susceptible to 'bloat', so water quality is of the utmost importance. It exists in numerous colour morphs that hybridise freely and should not be mixed, and some may eventually be described as distinct species.

Tropheus duboisiWhite-Spotted Cichlid
Cichlidae · authority not recorded
The white-spotted cichlid, Tropheus duboisi, is endemic to Lake Tanganyika, found in rocky areas in deeper water than its congeners. Young fish have white or light blue spots on a jet black body, which fade to blue-black with a yellow or white vertical bar as they mature. Like others in the genus it is very susceptible to 'bloat' and not a good species for the beginner.

Tropheus moorii
Cichlidae · Boulenger, 1898
Tropheus moorii is a cichlid endemic to Lake Tanganyika, found in shallow water around rocky shores and known in over 50 geographical morphs. Despite its popularity it is not a good species for the beginner. Water quality matters above all because it is very susceptible to 'bloat', vegetable matter should form the basis of its diet, and different morphs hybridise freely and should not be mixed.

Uaru amphiacanthoidesUaru
Cichlidae · authority not recorded
The uaru, Uaru amphiacanthoides, is a large cichlid from the Amazon basin in northern Brazil and Guyana, found in clear water tributaries. It occurs in the middle to lower Rio Negro and along the Solimões and main Amazon between the Japurá and Tapajós. Surprisingly peaceful for its size, it needs clean, well-filtered water at the higher end of the temperature scale.

Vieja melanurusRedhead Cichlid
Cichlidae · (Günther, 1862)
The redhead cichlid, Vieja melanurus, is a large cichlid endemic to the River Usumacinta basin in Mexico, Guatemala and Belize. The most commonly available Vieja in the hobby, it is widely and incorrectly called V. synspillum. It lives in still or slow-moving lowland rivers and lakes, sometimes in mildly brackish water, and is moderately aggressive. It is still often sold as Vieja synspila.

Vieja zonataOaxaca Cichlid
Cichlidae · authority not recorded
The Oaxaca cichlid, Vieja zonata, is a large cichlid that appears to be endemic to the River Tehuantepec drainage in Mexico. Hardy and easy to keep, though moderately aggressive, it is only occasionally available through specialist cichlid dealers. It can be kept with similarly sized cichlids in a large enough aquarium, and will eat any fish small enough to fit into its mouth.

Herichthys cyanoguttatusTexas Cichlid
Cichlidae · authority not recorded
The Texas cichlid, Herichthys cyanoguttatus, is native to the Rio Grande drainage in the southern United States and Mexico. The only cichlid occurring naturally in the USA, it is highly belligerent and territorial, digs constantly and needs a tank of at least 120 cm for a single specimen. The similar H. carpintis is sometimes sold under its name and has larger, scattered flank spots, where H. cyanoguttatus shows obvious lateral rows of small spots.
Haplochromis polli
Cichlidae · Thys van den Audenaerde, 1964
Haplochromis polli is a cichlid described from Pool Malebo (Stanley Pool), the lake-like widening of the Congo River between Kinshasa and Brazzaville. It has been recorded south to Pioka and Maninga in the Lower Congo and north to Kwamouth. Mostly benthic and not very gregarious, it is best kept as a single male with several females, since the dominant individual will not normally tolerate others in its territory.

Julidochromis transcriptusMasked Julie
Cichlidae · Matthes, 1959
The masked julie, Julidochromis transcriptus, is a small cichlid endemic to the rocky coastal zones of northwestern Lake Tanganyika. It is known from between Luhanga and Makabola in the Democratic Republic of the Congo and grows to around 65 mm SL.

Andinoacara rivulatusGreen Terror Cichlid
Cichlidae · (Günther, 1860)
The green terror cichlid, Andinoacara rivulatus, is a large cichlid from extreme northern Peru and the coastal drainages of western Ecuador. Generally aggressive and territorial, it is best kept alone or as a mated pair unless the tank is enormous. Males grow substantially larger than females and develop a nuchal hump when mature. Fish from the northern end of its range may represent a different species.

Champsochromis caeruleusMalawi Trout
Cichlidae · authority not recorded
The Malawi trout, Champsochromis caeruleus, is a large predatory cichlid endemic to Lake Malawi, where it roams from rocky shores to open water. Also known as the trout cichlid, it is only occasionally offered for sale because its solitary lifestyle makes it difficult to collect. It is told apart from C. spilorhynchus by its more elongate shape, and at up to 32.5 cm this active, pelagic species needs a tank of at least 180 x 60 x 60 cm.

Champsochromis spilorhynchus
Cichlidae · authority not recorded
Champsochromis spilorhynchus is a large predatory cichlid known from Lake Malawi, Lake Malombe and the upper Shire River. It is only occasionally offered for sale because its solitary lifestyle makes it difficult to collect, and it is much sought after by enthusiasts. A deeper body and distinctive black markings on the snout separate it from C. caeruleus. At up to 35 cm, this active, pelagic species needs a very large tank with plenty of swimming space.

Cichlasoma festaeRed Terror
Cichlidae · authority not recorded
The red terror, Cichlasoma festae, is a large, territorial cichlid from the Rio Esmeraldas in Ecuador and the Rio Tumbes in Peru. Males reach around 20 inches and females 12, and anything the fish can fit in its large mouth will be seen as food. Pairing is troublesome, since the weaker fish of an incompatible pair is likely to be killed, so a pair is best grown on from six juveniles. An introduced population also exists in Singapore.

Cincelichthys pearsei
Cichlidae · (Hubbs, 1936)
Cincelichthys pearsei is a large, almost exclusively vegetarian cichlid from the coastal waters of eastern Mexico and Guatemala. Males reach around 42.5 cm and females around 35 cm, so a fully grown male or pair needs a tank of around 240 cm, and any plants will be eaten. For its size it is quite placid, and suits a community of bigger fish that share its need for hard, alkaline water.

Cyathopharynx furciferFeatherfin Cichlid
Cichlidae · authority not recorded
The featherfin cichlid, Cyathopharynx furcifer, is a maternal mouthbrooder endemic to Lake Tanganyika, where it lives over scattered rocks and sand. Highly sought after in the hobby but fairly delicate, it needs a lot of space and the highest water quality, and males develop full adult colour only at around 4 inches. Males dig spawning craters up to 60 cm across. The colour forms of the two Cyathopharynx species should not be kept together, as they can hybridise.

Cyphotilapia frontosaHumphead Cichlid
Cichlidae · (Boulenger, 1906)
The humphead cichlid, Cyphotilapia frontosa, is a large cichlid endemic to the northern portion of Lake Tanganyika. Known in the hobby as 'frontosa' or 'front', it grows to 255 mm SL and is gregarious, forming a dominance hierarchy in groups of at least five. Populations are usually labelled by locality to preserve pure bloodlines, and forms referred to as 'Blue Zaire' belong to its only congener, C. gibberosa.

Cyphotilapia gibberosa
Cichlidae · Takahashi & Nakaya, 2003
Cyphotilapia gibberosa is a large cichlid endemic to southern Lake Tanganyika, with a hump on the forehead and broad vertical body bands. Until its description in 2003 the genus was considered monotypic, and forms referred to as 'Blue Zaire' are sometimes misidentified as C. frontosa. A gregarious maternal mouthbrooder, it grows to 255 mm SL and forms a dominance hierarchy in groups of at least five.

Mayaheros urophthalmusMayan Cichlid
Cichlidae · (Günther, 1862)
The Mayan cichlid, Mayaheros urophthalmus, is a large cichlid native to eastern parts of Mexico, Belize, Guatemala, Honduras and Nicaragua. Also known as the Mexican mojarra, it lives in swamps, marshes and coastal lagoons, can tolerate and even breed in full marine conditions, and is often seen spawning around mangroves. Territorial and fairly aggressive, it is regarded as a potential pest fish in the USA, where introduced populations exist. It is still often sold as Cichlasoma urophthalmus.

Neolamprologus buescheriStriped Lamprologus
Cichlidae · (Staeck, 1983)
The striped lamprologus, Neolamprologus buescheri, is a cichlid endemic to Lake Tanganyika, found around the southern part of the lake. One of the most aggressive small cichlids in the hobby, it is not recommended for the beginner and needs plenty of caves for subdominant fish. Several geographical morphs are available, including 'gombi', 'kachese', 'kamakonde' and 'zaire'.

Neolamprologus pulcherBrichardi
Cichlidae · (Trewavas & Poll, 1952)
Known in the hobby as the brichardi, Neolamprologus pulcher is a cichlid endemic to Lake Tanganyika, where it lives over rocky shoreline. It is sold as the fairy cichlid, lyretail cichlid and princess of Burundi, and is easy to keep and breed. It is aggressively territorial, especially when guarding fry, and in nature occurs in shoals of many thousands. Species in the 'Brichardi complex' hybridise freely and should not be mixed.

Oreochromis mossambicusMozambique Mouthbrooder
Cichlidae · authority not recorded
The Mozambique mouthbrooder, Oreochromis mossambicus, is a cichlid native to the East African coast and one of the most invasive fish in the world. Farmed for food across the globe, it now has escaped populations in over 90 countries. Known in the trade as the 'Mossie', it reaches 39 cm, breeds readily in large broods and is not recommended to most hobbyists. The brightly coloured forms seen in aquaria are selectively bred, and some are crosses with other Oreochromis.

Oreochromis niloticus niloticusNile Tilapia
Cichlidae · authority not recorded
The Nile tilapia, Oreochromis niloticus niloticus, is a cichlid with a very wide natural range in Africa, from Senegal east to Egypt and Uganda. Bred in huge numbers as a food fish, it has been introduced to over 70 other countries and is one of the most invasive fish species in the world. It reaches 60 cm, though usually around 35 cm, breeds readily, is very messy and does not make a good aquarium subject.

Oreochromis tanganicaeTanganyikan Tilapia
Cichlidae · authority not recorded
The Tanganyikan tilapia, Oreochromis tanganicae, is a large cichlid endemic to Lake Tanganyika, where it inhabits river mouths and shorelines. It is often seen in shoals in nature and appears to feed primarily on phytoplankton. Reaching 42 cm, it is not seen very often in the hobby.

Retroculus lapidifer
Cichlidae · (Castelnau, 1855)
Retroculus lapidifer is a rheophilic cichlid from the rio Tocantins and Araguaia systems and nearby coastal drainages of northeastern Brazil. It lives in rapids and fast-flowing stretches of clear water rivers, and needs a set-up designed to resemble a flowing river, with a base of at least 210 by 60 cm and water of 26 to 32 °C. A biparental substrate-spawner, it has been bred in aquaria and is available in the trade on a sporadic basis.

Retroculus xinguensis
Cichlidae · Gosse, 1971
Retroculus xinguensis is a rheophilic cichlid from the rio Xingu basin in Brazil, with a handful of records from the Tapajós drainage. It occurs in rapids and fast-flowing stretches of clear water rivers, and differs from its congeners in having conspicuous dark bars on the caudal fin. It is available in the trade on a sporadic basis and needs a large set-up designed to resemble a flowing river, with water of 26 to 32 °C.

Satanoperca daemonThreespot Eartheater
Cichlidae · (Heckel, 1840)
The threespot eartheater, Satanoperca daemon, is a cichlid from the rio Negro, Casiquiare and upper Orinoco systems in Brazil, Venezuela and Colombia. It is mostly observed in acidic, mineral-poor blackwater. Relatively common in the aquarium trade, it is by no means easy to maintain, needing particular attention to space, diet, water quality and chemistry. Two dark blotches on the flank separate it from the similar S. lilith, which has only one.

Satanoperca jurupariDemon Eartheater
Cichlidae · (Heckel, 1840)
The demon eartheater, Satanoperca jurupari, is a cichlid recorded throughout much of the Amazon basin in Brazil, Bolivia, Peru, Ecuador and Colombia. In aquarium literature it is frequently confused with S. leucosticta, which has prominent white spots or vermiform markings on the sides of the head. Its precise identity is a confusing issue, and populations from the Tapajós, Xingu, Araguaia and Paraná are genetically distinct and may represent separate species.

Satanoperca lilith
Cichlidae · Kullander & Ferreira, 1988
Satanoperca lilith is an eartheater cichlid known only from Brazil, where it is widely distributed along the Solimões/Amazon main channel. Despite that extensive range it is uncommon in the ornamental trade, where it is sometimes called 'one-spotted demon fish' or 'one spot eartheater'. A single dark blotch on the flank separates it from the closely similar S. daemon, which has two.

Satanoperca pappaterraPantanal Eartheater
Cichlidae · (Heckel, 1840)
The Pantanal eartheater, Satanoperca pappaterra, is a cichlid from the rio Guaporé and upper rio Paraguai basins in Brazil, Bolivia and Paraguay. Relatively rare in the ornamental trade and much sought after, it is easily told from all known congeners by a series of prominent black blotches beneath the dorsal-fin and a well-defined dark band along the side of the body. It has been introduced to the upper rio Paraná in southeastern Brazil.

Boulengerochromis microlepisEmperor Cichlid
Cichlidae · (Boulenger, 1899)
The emperor cichlid, Boulengerochromis microlepis, is the only member of its genus and the largest African cichlid, endemic to Lake Tanganyika. A prized food fish around the lake, it grows to 450 to 550 mm and adults are almost entirely piscivorous. Young farm-raised specimens have been readily available in the trade since the mid-2000s, but it is suitable only for public installations or the very largest private aquaria.
Cichla monoculusTucanare Peacock Bass
Cichlidae · authority not recorded
The tucanare peacock bass, Cichla monoculus, is a large predatory cichlid from Colombia, French Guiana, Peru and Brazil, including the Rio Solimões. Often sold as small juveniles, it grows to around 80 cm and needs a tank of at least 10 x 3 x 4 feet as an adult, so it is more suited to public aquaria. It is territorial and moderately aggressive and will eat any tankmate small enough to be considered food.

Cichla ocellarisPeacock Bass
Cichlidae · authority not recorded
The peacock bass, Cichla ocellaris, is a large predatory cichlid native to Colombia, Venezuela, Guyana, Suriname, French Guiana and Brazil. Introduced populations exist in several countries, including Singapore and the USA. Often sold as small juveniles, it grows to around 75 cm and needs a tank of at least 10 x 3 x 4 feet as an adult, and it will eat any tankmate small enough to be considered food.
Cichla orinocensisOrinoco Peacock bass
Cichlidae · authority not recorded
The Orinoco peacock bass, Cichla orinocensis, is a predatory cichlid from the Orinoco basin in Venezuela and Colombia and the Rio Negro in Brazil. One of the smaller peacock bass, it still grows to around 60 cm and needs a tank of at least 8 x 3 x 3 feet as an adult. It is territorial and moderately aggressive and will eat any tankmate small enough to be considered food.
Cichla temensisSpeckled Pavon
Cichlidae · authority not recorded
The speckled pavon, Cichla temensis, is a large peacock bass from the Rio Negro, Uatumã and Orinoco basins in Colombia, Venezuela, Guyana and Brazil. One of the largest Cichla species at up to 99 cm, it is more suited to public aquaria and needs a tank of at least 10 x 3 x 4 feet as an adult. Often sold as small juveniles, it is also fished as a sport fish.

Maskaheros reganiRegan's Cichlid
Cichlidae · (Miller, 1974)
Regan's cichlid, Vieja regani, is a large cichlid endemic to the River Coatzacoalcos basin in Mexico, where it lives in rocky rivers. Uncommonly seen, it can be a challenge to accommodate, and it is not uncommon to end up keeping these fish individually. It was previously described as Cichlasoma regani and is still occasionally sold under that name.

Pterophyllum altumAltum Angel
Cichlidae · authority not recorded
The altum angel, Pterophyllum altum, is a cichlid from Colombia and Venezuela, native to the upper Rio Negro and tributaries of the upper Rio Orinoco. Far less common in the trade than its relative P. scalare, the common angelfish, it is a challenge to keep. It needs very acidic, soft water and high temperatures, most fish are wild-caught and can be difficult to feed, and spawning in captivity is hard to achieve.

Vieja bifasciataRed-spotted Cichlid
Cichlidae · authority not recorded
The red-spotted cichlid, Vieja bifasciata, is a large cichlid from the River Grijalva and Usumacinta basins of Mexico and Guatemala. It is often confused with V. synspila but has two prominent horizontal lines between the eyes. It is moderately to very aggressive depending on the individual, and some fishkeepers have to keep the fish, especially males, alone.

Retroculus acherontos
Cichlidae · Landim, Moreira & Figueiredo, 2015
Retroculus acherontos is a cichlid known only from tributaries of the upper rio Tocantins basin in Goiás state, Brazil. It grows to at least 194 mm and differs from its congeners in developing a nuchal hump in both sexes above about 121 mm SL. Based on its morphology it is hypothesised to be less rheophilic than other Retroculus, and it has been collected in small to medium-sized tributaries with clear or sediment-filled water.

Lugubria lugubrisAtabo Red Pike Cichlid
Cichlidae · (Heckel, 1840)
The Atabo red pike cichlid, Lugubria lugubris, is a large pike cichlid from rivers in Suriname, Guyana and Brazil. Colourful when small, it quickly grows into an aggressive adult of up to 40 cm and will eat any fish small enough to be considered food. Pairs are difficult to form because males become increasingly aggressive as they mature, and prospective mates are often killed.