Results for “sp.”
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Akysis prashadiIndawgyi Stream Catfish
Hora, 1936
Max length62mm SL2.4in SLTank45 × 30cm18 × 12inTemp16.5–24°C62–75°FpH6.0–7.2This species is among the few members of the family to be exported for the aquarium hobby though is by no means common. It can be differentiated from a...

Akysis vespaOrange-Banded Stream Catfish
Ng & Kottelat, 2004
Max length31mm SL1.2in SLTank45 × 30cm18 × 12inTemp16.5–23.5°C62–74°FpH6.0–7.5This species is among the few members of the family to be exported for the aquarium hobby and we've also seen it on sale under various names such as 'orange-banded stone catfish', 'orange micro bumblebee catfish', 'Burmese orange mini bee catfish' or more simply 'wasp catfish'. Though the majority of forms are yellowish to orange in colouration there appears to exist a bright red variant which to date we've only seen in photos.

Akysis vespertinusWestern Stream Catfish
Ng, 2008
Max length35mm SL1.4in SLTank45 × 30cm18 × 12inTemp16.5–24°C62–75°FpH6.0–7.5This species is exceptionally rare in the aquarium trade and can be distinguished from congeners by the following combination of characters: snout narrow with head appearing triangular as a resul...

Alcolapia alcalicaSoda Cichlid
Hilgendorf, 1905
Max length115mm SL5in SLTanknot recordedTemp28–38°C82–100°FpH8.0–10.0This cichlid is a true wonder of nature. It lives in a soda lake which is full of hot, alkaline springs. The water contains a high concentration of sodium carbonate and other dissolved minerals and salts. The water conditions in the lake are typically pH 9.5-10.5, kH 7000+ and temperature 90-110°F! The water also has a sg reading of 1.2+ and is very shallow, having a maximum depth of only 2 metres. The fish can be acclimatised to more 'normal' conditions but the pH should not be al...

Alestopetersius brichardiCherry Red Congo Tetra
Poll, 1967
Max length80mm SL3.1in SLTank120 × 30cm48 × 12inTemp20–28°C68–82°FpH5.0–7.0This species is sometimes traded as 'cherry red Congo tetra' or 'super red Congo tetra' and has also been referred to using the misapplied names Alestopetersius nigropterus (a valid congener) and A. ansorgii (a synonym of Nannopetersius ansorgii).

Alestopetersius caudalisYellow-Tailed Congo Tetra
Boulenger, 1899
Max length60mm SL2.4in SLTank120 × 30cm48 × 12inTemp22–26°C72–79°FpH5.0–7.5This species is also traded as 'yellow-finned', 'yellowtail' or 'blue Congo' tetra and is occasionally bred on a commercial basis, although not on a scale comparable to its better-known relative Phenacogrammus interruptus. No recent key to the genus exists but based on Géry (1977) and images in Mbimbi Mayi Munene and Stiassny (2012) it can be told apart from congeners by a combination of: extended median caudal-fin rays in adult males; absence of prominent dar...

Alestopetersius smykalaiBlue Diamond Tetra
Poll, 1967
Max length60mm SL2.4in SLTank120 × 30cm48 × 12inTemp20–28°C68–82°FpH5.0–7.0This species appears to be restricted to the Imo and Niger drainages in Nigeria but the full extent of its distribution is unclear. Type locality is 'Aba, Lower Niger, Nigeria', corresponding to the city of Aba in Abia state, southern Nigeria which lies on the Aba River, a tributary of the Imo. Nigeria has lost 95 % of its original rainforest cover, num...

Alfaro cultratusKnife Livebearer
Regan, 1908
Max length75mm SL3.0in SLTanknot recordedTemp24–28°C75–82°FpH6.0–8.0This is an exceptionally hardy and adaptable species. It's not an especially common fish in stores, but is quite widely available in hobbyist circles. The common name arises from the row of modified, paired scales that form a keel running from the base of theto the caudal fin....

Altolamprologus calvusCalvus Cichlid
Poll, 1978
Max length138mm SL5in SLTanknot recordedTemp24–27°C75–81°FpH7.5–9.0A. calvus is a predator by nature and its body shape has been adapted to allow it to enter small crevices and gaps in the rockwork of Lake Tanganyika to prey on eggs, fry and small fish. Its laterally compressed shape makes the fish hard to spot head on, giving it an advantage over would be predators and prey alike. It is also quite well-armoured, possessing thick scales which can be turned towards potential attackers. These can cause real damage with their serrated edges. Several colour form...

Altolamprologus compressicepsCompressed Cichlid
Boulenger, 1898
Max length125mm SL5in SLTank120 × 45cm48 × 18inTemp24–28°C75–82°FpH8.0–9.0This species varies in colour pattern depending on locality. Some of them are sold under several such names with the variant from Kigoma being known variously as A. compressiceps "Kigoma red", "Kigoma red fin", "Kigoma orange top" or "firefin" for example. The different populations should ideally be kept apart in aquaria and clearly labelled with collection locality in order to avoid hybridisation. Forms popular in the aquarium hobby include: - &quo...

Ambastaia nigrolineataBlack-Lined Loach
Kottelat & Chu, 1987
Max length80mm SL3.1in SLTank90 × 30cm36 × 12inTemp20–25°C68–77°FpH6.5–7.5This specie is relatively rare in the aquarium trade and much sought after by enthusiasts as a result. It looks relatively similar to A. sidthimunki but according to the original description by Kottelat and Chu (1987) can be told apart by colour patterning which uniquely consists of a solid da...

Ambastaia sidthimunkiDwarf Chain Loach
Klausewitz, 1959
Max length60mm SL2.4in SLTank80 × 30cm31 × 12inTemp20–30°C68–86°FpH5.5–7.5This species was lost to the hobby for several years prior to the turn of the century and when commercially-produced stock first came onto the market prices were very high. It's now readily available, though, and while never particularly cheap is considerably less expensive.

Amblydoras nauticusMarbled Talking Catfish
Cope, 1874
Max length75mm SL3.0in SLTank60 × 30cm24 × 12inTemp23–28°C73–82°FpH5.5–7.5This species was previously thought to be, and is often still sold as, A. hancockii, a name currently considered synonymous with Platydoras hancockii (Valenciennes 1840). It's also known by the vernacular names of blue-eyed catfish or Hancock's doradid, and in many ways is an ideal beginners' catfish, being hardy and tolerant of a wide range of water conditions...

Amblypharyngodon chulabhornaePrincess Carplet
Vidthayanon & Kottelat, 1990
Max length40mm SL1.6in SLTank90 × 30cm36 × 12inTemp18–28°C64–82°FpH6.0–8.0The genus Amblypharyngodon currently contains five valid species, and A. chulabhornae can be distinguished from congeners by the following combination of characters: 42-50 (vs. 50-79) scales in the lateral row; lateral line incomplete with 6-7 (vs. 7-23) perforated scales; 4-5 scales on a transverse row between the lateral line and pelvic-fin base. All members of the genus lack barbels.

Amphilophus citrinellusMidas Cichlid
Günther, 1864
Max length350mm SL14in SLTanknot recordedTemp21–26°C70–79°FpH6.0–8.0Previously included as a member of the genus Cichlasoma, the midas cichlid is often confused with the red devil, A. labiatus. The two can be distinguished through differences in morphology. As suggested by its scientific name, A. labiatus often possesses characteristically large lips, although this is variable and should not be used as a defining indicator of species. More reliable differences include the bigger nuchal hump and more thick-set appearance in A. citrinellus. The midas exists in many n...

Amphilophus labiatusRed Devil Cichlid
Günther, 1864
Max length350mm SL14in SLTanknot recordedTemp21–26°C70–79°FpH6.0–8.0Previously included as a member of the genus Cichlasoma, the red devil is often confused with the midas cichlid, A. citrinellus. The two can be distinguished through differences in morphology. As suggested by its scientific name, A. labiatus possesses characteristically large lips, although in reality this is variable and should not be used as a defining indicator of species. Certainly, tank bred fish tend not to have these large lips. More reliable differences include the bigger nuchal hump and mo...

Andinoacara pulcherBlue Acara
Gill, 1858
Max length150mm SL6in SLTanknot recordedTemp22–28°C72–82°FpH6.5–8.0This species was previously known as 'Aequidens' pulcher but has been considered s member of the genus Andinoacara since 2009.

Andinoacara rivulatusGreen Terror Cichlid
Günther, 1860
Max length300mm SL12in SLTank150 × 45cm60 × 18inTemp20–24°C68–75°FpH6.5–8.0Native to extreme northern Peru and coastal drainages of western Ecuador as far north as the Río Esmereldas drainage and possibly beyond. The form from the Esmereldas and above may represent a different species (see 'notes').
Annamia cf. thuathienensis
Nguyen, 2005
Max length100mm SL3.9in SLTank120 × 30cm48 × 12inTemp16–22°C61–72°FpH6.0–7.5Annamia spp. may be confused with related genera such as those of the genus Balitoropsis. They can be identified by their more depressed body shape, elongate lower caudal-fin lobe, and the presence of a single unbranched ray in the pectoral and pelvic fins. At least one undescribed member of the genus is thought to exist.

Annamia normaniVietnamese Giraffe Loach
Hora, 1931
Max length100mm SL3.9in SLTank120 × 30cm48 × 12inTemp16–22°C61–72°FpH6.0–7.5Traditionally considered to be a micropredator feeding on insect larvae and suchlike (Rainboth, 1996), but a study by Herder and Freyhof (2006) revealed adult A. normani inhabiting the Duc My River in central Vietnam to be specialised grazers of cyanobacteria. In rapids the latter form hard encrustations on rock surfaces from which adults are able to bite chunks.