Results for “species”

Despite its unsuitability for the majority of home aquaria, this species is available in the aquarium trade on an irregular basis, and has also been marketed as 'violet-gilled shark', 'red-gilled violet shark' and 'blushing violet shark'. It appears likely that L. boga as currently recognised represents a complex of closely-related species.

L. cyclorhynchus was described twice in the space of two years, with Pellegrin erecting Labeo variegatus for it in 1901. Although the invalidity of the variegatus name is quite well-documented you may still see the species named as such in older literature, trade lists and by some websites. It's also worth noting that the attractive patterning seen in young fish does fade with age, the adults being much darker in colour. The genus Labeo currently contains over 100 species but is in dire ...

This species has the characteristic overhanging snout possessed by all three members of the genus. It has chisel-shaped teeth which are designed for grazing algae off rocks. These physical adaptations allow it to graze algae from rocks situated in very shallow water which other species cannot reach. The position of the mouth allows the fish to remain parallel to the rock surfaces, thus enabling it to cope with the turbulence in these areas. L. fuelleborni exists in many different colour forms in...

This species has the characteristic overhanging snout possessed by all three members of the genus. It also has chisel-shaped teeth which are designed for scraping algae off rocks. These physical adaptations give it a competitive advantage, as they allow it to graze from rocks situated in very shallow water which other species cannot reach. The position of the mouth allows the fish to remain parallel to the rock surfaces, thus enabling it to cope with the turbulence in these areas. L. trewava...

An interesting species which resembles the popular Steatocranus species, both physically and in lifestyle. It has several physiological adaptations to allow it to live in rapids and fast-moving waters. The body is very streamlined, with strong pectoral fins. The swimbladder is also modified, being much reduced in size. This makes the fish less buoyant and thus less likely to be swept away by strong currents. In the aquarium it spends most of its time on the substrate, where it swims in a comical...

A highly piscivorous, predatory species unsuited to the general aquarium. It is an ambush predator in nature, often being seen hanging motionless around rocky structures or on the floor of the lake. It is a sedentary species and does not move around a lot. This is a behavioural adaptation known as thanatosis, or 'playing dead'. This strategy is usually used as a defensive means in other animals, but in L. lemairii it is adapted for offensive means. The fish has a mottled colour pattern...

Care must be taken when purchasing this species as females look so different to males that the sexes were initially described as separate species!

We've included this species on the site purely because there have been an alarming number of juvenile fish showing up in some aquatic stores, and as a result, in hobbyists tanks. This species is simply not suited to captive life in any respect. If you see one for sale, and they are undeniably an attractive fish, please don't be tempted to buy it. As responsible fishkeepers, we should consider the long term well-being of any fish that we buy, and housing a L. angustifrons for life is ev...

This species has been introduced into many areas in Africa for commercial purposes, and it's had a hugely detrimental effect on local fish populations in some of these environments. The most notable case is that of Lake Victoria, where much of the endemic cichlid population has been wiped out. L. niloticus is thought to have directly contributed to the extinction of over 200 endemic species in the lake by predation, or outcompeting them for food. The IUCN have included it in their list of t...

It's debatable as to whether this species should be considered an aquarium subject at all, given its eventual size. All too often, juveniles are sold without adequate information regarding their long term care. These cats can and will attain something close to their maximum size in captivity, and will do so quite quickly. The myth that they will only grow to match the size of the tank they're kept in is just that. It's also worth noting that species such as this can live for well ...

This species is not traded often but may occasionally be exported as bycatch among shipments of other species. It can be distinguished from congeners by the following combination of characters: presence of large, exposed scales on top of head; dorsal-fin origin posterior to pelvic-fin origin; moderate to small size (to 29 mm SL); caudal-fin emarginate and with dark reticulations; caudal-fin lobes with dark, elongated spots along upper and lower edges.

This species is not traded often but is occasionally available as bycatch among shipments of other species. It can be told apart from congeners most easily by the prominent, dorsally-orientated, roughly semi-circular lamina circularis in males, a feature unique within the genus. Other distinguishing characters include a combination of: forked caudal-fin; relatively small adult size; dark <-shaped mark at the base of the caudal-fin; a black spot at the base of branched caudal-fin rays 3-5.

This species is not traded often but may be available occasionally bycatch among shipments of other species. It can be told apart from congeners most easily by the following combination of characters: truncate caudal-fin; scaleless patch on top of head; caudal-fin with reticulated patterning, sometimes appearing as a series of thin vertical bars; body reddish brown with darker markings; 3-7 predorsal and 3-6 postdorsal thin, transverse dark bars running across the dorsal surface; relatively deep...

There are a few different colour forms of this lovely suckermouth available, each of which possess varying amounts of orange patterning in the fins. Some of these are given extravagant sounding names such as "dragon fin" or "tiger fin". What's nice about this species, is that these flashes of colour don't fade with age, as with many of its relatives, making for a striking fish when fully grown. Leporacanthicus species are commonly referred to as "vampire ple...

This species was referred to as its congener Leptobarbus hoevenii for a number of decades and continues to be misidentified as such in the aquarium hobby, with both species traded under the same name. It is a popular sport fish in its native countries and is wholly unsuitable for private aquaria. Unfortunately it is...

The genus Leptodoras currently contains 10 species, none of which are particularly well known in the hobby. There is little published information regarding the genus, and its members are seldom exported for the aquatic trade. L. linnelli is no exception, usually only turning up as bycatch among shipments of other species such as Opsodoras leporhinus or Hassar orestis. According to Fishbase, it can be distinguished from all other members of the genus except L. acipenserinus by the presence of...

There is some confusion regarding the taxonomy of this species and its congener L. stappersi. L. stappersi was originally regarded as a subspecies of perspicax but is now considered a distinct species. It is not often seen in the hobby....

This species is poorly known in general and is not present in the ornamental trade, although its name is widely misapplied to other Luciosoma species. Its congeners are mostly marketed as 'apollo shark', 'shark minnow', or similar, and often labelled with incorrect scientific names. Identification of the fish pictured here is based on Bleeker (1855, 1860) and Roberts (1989), plus drawings by Bleeker, thus...

This species was formerly classified as Pseudotropheus greshakei and Metriaclima greshakei and is still named as either of these by many sources. The genus name Maylandia is now used to describe all former members of the 'zebra' group of Pseudotropheus. An albino form of this species exists in aquaria and is occasionally available....

This species can be distinguished from the similar M. cyaneorhabdos by the overall black colouration of dominant males, as opposed to the more blueish patterning of cyaneorhabdos. It is sometimes sold as "electric blue johanni". Do not keep it with other Melanochromis species as they may hybridise....