Results for “sp.”
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Monopterus albusSwamp Eel
authority not recorded
Max length1000mm SL39in SLTank180 × 60cm72 × 24inTemp25–28°C77–82°FpH6.0–8.0An incredibly hardy species, M. albus has the ability to travel over land for short distances if kept moist and as mentioned above, often burrows into moist earth (sometimes up to a depth of 1.5 metres!) in order to survive dry conditions. It has only a single gill slit, located on the bottom of the throat, that allows it to trap air in its specially adapted gills. These contain an accessory breathing organ, which takes the form of a pair of lung-like sacs at the rear of the gill chamber. In thi...
Nanochromis parilus
authority not recorded
Max length80mm SL3.1in SLTanknot recordedTemp22–25°C72–77°FpH6.0–7.0N. parilus is one of the commoner Nanochromis in the hobby as it is more easily collected from its natural waters than most species. It is easily confused with the less often seen N. nudiceps but can be distinguished by the fact that male fish exhibit a barred patterning inn the upper half of the which is not present in nudiceps. Females can be distinguished by the unpatterned lower part of the caudal, which is spotted in nudiceps. There are a couple of geographical variants available. We do ...

Nemacheilus platiceps
Kottelat, 1990
Max length61mm SL2.4in SLTank60 × 30cm24 × 12inTemp23–26°C73–79°FpH6.0–7.5This species is only traded occasionally. It's distinguished from congeners by a combination of characters including: 12-16 dark, irregular, vertical bars on body, usually split vertically; lips without furrows; inco...
Neolamprologus boulengeri
authority not recorded
Max length65mm SL2.6in SLTanknot recordedTemp24–27°C75–81°FpH7.5–9.0N. boulengeri can be distinguished from the similar N. hecqui and Lamprologus kungweensis primarily by the orange border on the dorsal and anal fins, although its adult patterning is somewhat different to the other species. Unlike many other shell dwellers, it will spawn in small caves if no shells are made available....

Neolamprologus marunguensis
authority not recorded
Max length60mm SL2.4in SLTanknot recordedTemp23–27°C73–81°FpH7.5–9.0A less often seen but good looking species with a deeply forked tail. It was previously sold as Neolamprologus sp. "walteri".
Neolamprologus multifasciatus
authority not recorded
Max length45mm SL1.8in SLTanknot recordedTemp24–27°C75–81°FpH7.5–9.0This is probably the smallest known cichlid species and exhibits truly fascinating behaviour. The territories it establishes are very small, usually measuring no more than 6" across, but they are defended vigorously. The tiny fish will even bite hands or fingers that invade their 'personal space'! Highly recommended to anyone wishing to observe some unique behaviour on a small scale....
Neolamprologus olivaceous
authority not recorded
Max length80mm SL3.1in SLTanknot recordedTemp23–27°C73–81°FpH7.5–9.0This species is included in the so-called "Brichardi complex", which also includes N. brichardi, crassus, falcicula, gracilis, pulcher, savoryi and splendens. These should not be mixed in aquaria, as they will hybridise freely. N. olivaceouscan be distinguished from others in the complex by the two curved markings on the gill cover. It is possible that it is synonymous with N. pulcher, as proposed by Konings (1993)....
Neolamprologus savoryiStriped Brichardi
authority not recorded
Max length80mm SL3.1in SLTanknot recordedTemp23–27°C73–81°FpH7.5–9.0This species is included in the so-called "Brichardi complex", which also includes N. brichardi, crassus, falcicula, gracilis, helianthus, olivaceous, pulcher, and splendens. These should not be mixed in aquaria as they will hybridise freely. N. savoryi can be distinguished from others in the complex by it's distinctive patterning of vertical bars....
Neolamprologus similis
authority not recorded
Max length45mm SL1.8in SLTanknot recordedTemp24–27°C75–81°FpH7.5–9.0N. similis is one of the less frequently seen shelldwellers in the hobby but has no less personality than its cousins. The territories it establishes are very small, usually measuring no more than 6" across, but they are defended vigorously. The tiny fish will even bite hands or fingers that invade their 'personal space'! It can be distinguished from the similar N. multifasciatus by the presence of additional barring on the head and neck and also in this species the stripes appear...

Opsarius caudiocellatus
Chu, 1984
Max length86mm SL3.4in SLTank150 × 45cm60 × 18inTemp18–24°C64–75°FpH6.5–8.0This species may have appeared in the aquarium trade though probably not under the correct name. It can be told apart from similar-looking congeners by the following combination of characters: presence of a black round spot at the caudal base; dorsal-fin rays black with connecting membranes transparent; posterior dorsal-fin origin located midway between upper angle of gill aperture and caudal-fin base, or slightly closer to the latter.

Opsarius infrafasciatus
Fowler, 1934
Max length100mm SL3.9in SLTank120 × 45cm48 × 18inTemp18–26°C64–79°FpH6.0–8.0This species has previously been considered synonymous with both O. ornatus and O. pulchellus but is currently considered to be distinct following (Tejavej, 2012). It can be distinguished from congeners by a combination of characters including: small caudal spot presen...

Oreichthys crenuchoidesDrape Fin Barb
Schäfer, 2009
Max length45mm SL1.8in SLTank60 × 30cm24 × 12inTemp23–28°C73–82°FpH6.0–7.5This fish is sometimes traded as Oreichthys cosuatis, O. sp. 'high fin', O. 'umangii' (a nomen nudum that has only ever been applied to an image of a fish in the book 'Ornamental Aquarium Fish of India'; K. L.Tekriwal and A. A. Rao 1999), Puntius 'arunavii' or 'neon highfin barb'. It can be distinguished from congeners by the following combination of characters: absence of a dark marking in the anal-fin (vs. presence in other species); ½7½ scales scales between pelvic-fin origin and dorsal midline (vs. ½6½ in O. cosuatis and...
Oreochromis tanganicaeTanganyikan Tilapia
authority not recorded
Max length420mm SL17in SLTank210 × 60cm84 × 24inTemp24–28°C75–82°FpH7.5–9.0This large Tanganyikan species is not seen very often in the hobby. It is often seen in shoals in nature, where it appears to feed primarily on phytoplankton. An adult male would make a truly stunning specimen fish....

Oryzias sarasinorumSarasin's Buntingi
Popta, 1905
Max length60mm SL2.4in SLTank100 × 30cm39 × 12inTemp24–29°C75–84°FpH7.0–8.0Utilises a strategy which has become known as 'pelvic brooding'. Spawning tends to occur in the early morning, with dominant males darkening in colouration and defending their space by driving away potential competitors, while approaching ripe females in a rigid 'head-down' position. The eggs normally number 8-12 and are expelled as a single mass while being fertilised simultaneously, after which they continue to hang from th...
Oryzias woworaeDaisy's Ricefish
Parenti & Hadiaty, 2010
Max length30mm SL1.2in SLTank45 × 30cm18 × 12inTemp23–27°C73–81°FpH6.0–7.5The type locality is a karstic freshwater stream flowing under 80% forest cover with a mixed substrate of mud and sand plus patches of leaf litter. O. woworae was collected from a still pool around 3-4 m deep, opposite an affluent spring, where it was schooling with a species of Nomorhamphus which may turn out to be a form of N. ebrardtii but has subsequently appeared in the aquarium trad...
Otopharynx lithobatesSulphur-headed Hap
authority not recorded
Max length160mm SL6in SLTank90 × 45cm36 × 18inTemp24–28°C75–82°FpH7.6–8.8O. lithobates is a true rock dweller and is hardly ever seen in open water, even in aquaria. In fact, the scientific name lithobates literally translates as "rock dweller". Breeding males of this species rank among the most stunning of Lake Malawi Haplochromine cichlids. The three characteristic spots on the flanks disappear and are masked by a stunning neon blue patterning. Almost the entireand top of the head turn a deep yellow-orange colour. The most colourful variant is the "...

Pangio anguillaris
Vaillant, 1902
Max length120mm SL5in SLTank60 × 30cm24 × 12inTemp22–29°C72–84°FpH6.0–7.5One of a handful of Pangio spp. traded under the generic name 'eel loach'. Wild populations tend to differ in colour pattern to some extent, with some exhibiting a more intense lateral stripe while others display an irregular pattern of fine dark spots on the body, for example.

Parabotia fasciata
Dabry de Thiersant, 1872
Max length150mm SL6in SLTank120 × 45cm48 × 18inTemp20–24°C68–75°FpH6.0–7.5P. fasciata is rarely seen in the trade and is typically available only as bycatch among shipments of Sinibotia spp., particularly S. robusta. According to current classification numerous species from several genera are considered synonymous with it.

Parosphromenus linkei
Kottelat, 1991
Max length35mm SL1.4in SLTank40 × 20cm16 × 8inTemp22–28°C72–82°FpH3.0–6.5This species is said to be slightly easier to maintain than the majority of congeners and is therefore a recommended choice for those new to maintaining Parosphromenus spp. in the aquarium. It's occasionally available on a commercial basis and we've seen it traded as 'moonspot licorice gourami' in the past. There exist at least three colour forms on...

Parosphromenus quindecim
Kottelat & Ng, 2005
Max length40mm SL1.6in SLTank45 × 30cm18 × 12inTemp22–28°C72–82°FpH3.0–6.5This species has occasionally been traded on a commercial basis and was known as P. sp. 'Manis Mata' prior to description, with the latter apparently referring to a location some 100 km away from the type locality where the fish do not occur. It's said to be slightly easier to maintain than the majority of congeners and is therefore a recommended choice for those ne...