Results for “tail fin”

M. ramirezi is also known by the names 'Ramirez' dwarf cichlid' and 'butterfly cichlid' and is among the more popular dwarf cichlids in the aquarium hobby. As a result, it is produced on a commercial basis in huge numbers and a number of ornamental strains have been developed including 'gold', 'long-finned' (both blue and gold forms; also traded as 'lyre-tail', 'veil-tail' and 'hi-fin'), 'electric/neon blue', 'super neon blue gold' 'pearl/perlmutt' and 'balloon'.

Generally considered one of the hardiest small cyprinids available in the aquarium hobby, P. conchonius is an excellent choice for the beginner. Selective breeding has produced various ornamental strains including long-finned, 'veil-tail', 'super red', 'neon', and 'golden' forms. It's also been hybridised with some congeners although the offspring of such experiments are apparently infertile. It was formerly included in th...

This species is traded under various names including 'chocolate scissor-tailed loach', chocolate long-finned loach', 'red line cobra loach', 'spiny eel loach' and 'dragon loach'. It's apparently difficult to find in its natural habitats and thus time-consuming to collect, meaning it's rarely traded in numbers, sought after by enthusiasts and tends to carry a relatively high price tag when available. The genus currently contains just three...

This 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...

This species was previously referred to as M. thoracata, but that name is now applied to the species with a relatively short dorsal-fin spine which was formerly known as M. personata. M. picta can be told apart from M. thoracata by presence of a dark vertical bar in the caudal-fin, a comparatively longer dorsal-fin spine (52.0-64.0% vs. 32.0-48.0% of dorsal-fin base in specimens measur...

Most members of Epalzeorhynchos were formerly regarded as Labeo spp. and are thus referred to as such in older literature. According to Rainboth (1996) they're characterised by absence of a dorsal spine, possession of 10-13 branched dorsal fin rays, a thin membrane connecting the upper and lower lips and rigid, freely moveable rostral lobes. Epalzeorhynchos itself has undergone some quite recent changes with a handful of species hav...

This species is uncommon in the aquarium hobby. It is similar to the congeners C. borneensis and C. lorteti but can be told apart by males possessing a red (vs. bluish to greyish with black and white distal bands in C. lorteti) caudal-fin and lacking (vs. possessing) a black blotch at the base of the dorsal-fin.

This species is relatively rare in the aquarium hobby but is occasionally traded as 'red-tailed flag tetra'. It lends its name to the H. aghula group of closely-related species within the genus as proposed by Géry (1977, see below) of which members share the following characters which set them apart from other characids: lower half of the body dark, especially above the anal-fin; usually possessing a laterally-elongate humeral spot, more-or-less united wit...

Still relatively rare in the hobby, this fish was only described to science in the early 1990s. It's not yet being mass-produced in any great numbers, and demand is high, so it's quite pricey when it is available. It's a stunning fish when adult, developing bright red fin edges with filamentous extensions, and a body colour varying between blue-green and almost black. It makes a great pet as it can develop real personality and learn to recognise its owner....

This specie is relatively rare in the aquarium trade and much sought after by enthusiasts as a result. It looks relatively similar to Y. splendida but can be told apart from it, and indeed all other members of the genus, by the following combination of characters: possession of 8 branched dorsal-fin rays; 32-33 vertebrae; one or two small, brownish, vertically-orientated markings on the dorsal part of the body posterior to the dorsal fi...

It exhibits slightly different behaviour to the majority of congeners in that it tends to swim in midwater and spends a large proportion of its time away from the substrate. Its morphology exhibits corresponding adaptations towards a pelagic existence with a relatively large eye, a more terminal mouth position, more strongly-forked caudal-fin, and more symmetrical body shape than most other Corydoras species.