Search Species
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Water Type
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Found 358 species
Enteromius validus
Enteromius validus is a little Congo Basin barb that stays under 4 inches, with a chunky, sturdy body and proper barbels. Its wild diet is basically "whatever shows up" (insects, plant bits, seeds), so it is built for picking and browsing all day. This one is pretty obscure in the aquarium hobby, so most people keeping it are kind of blazing their own trail.
Vanmanenia gymnetrus
This is one of those true hillstream loaches built to live plastered onto rocks in fast current. It spends its time scooting around surfaces and grazing biofilm, and it really comes alive in a high-oxygen "river tank" setup. Not a "warm, still community tank" fish - it wants flow and clean water to look its best.
Upeneus vanuatu
Upeneus vanuatu is a small deep-water goatfish from off Vanuatu that lives way down around 191-321 m, so its natural water is cooler and darker than typical reef goatfish. Like other goatfish it has the little chin barbels for rooting around for food, but honestly this one is more of a scientific oddball than a realistic aquarium fish because of the depth it comes from.
Fowleria variegata
This is a small, mottled reddish-brown cardinalfish that likes to hang around rockwork and rubble and really comes into its own once the lights dim. In a calm reef tank its a super chill, slow swimmer, and if you keep a small group they tend to hover together and look way more natural.
Lepidotrigla vaubani
Lepidotrigla vaubani is a small, bottom-dwelling marine gurnard (sea robin) from the western Pacific. Like other gurnards its "walking" pectoral fin rays are the fun part - it creeps along the seafloor poking around for little crustaceans and worms, way more personality than you would expect from a bycatch-type fish.
Hyphessobrycon elachys
This is one of those tiny Paraguay-basin tetras that looks kind of understated until the males mature and start throwing those longer, flowy fins - then it gets really classy. Keep them in a proper little group and theyll spend the whole day hovering and cruising the midwater, looking extra sharp over dark substrate and plants.
Ophioscion vermicularis
Eastern Pacific marine demersal croaker found over sandy and muddy bottoms in shallow waters; feeds on benthic invertebrates and is common in local markets. Aquarium care information is limited compared with typical ornamental marine species.
Acheilognathus fasciodorsalis
Acheilognathus fasciodorsalis is a freshwater bitterling endemic to Vietnam. Like other bitterlings (Acheilognathidae), reproduction involves females using an ovipositor to deposit eggs in freshwater mussels.
Gobioides broussonnetii
This is the long, eel-y "dragon goby" you see at shops sometimes-looks scary with that toothy face, but it's actually a chill mud-and-sand sifter. In nature it hangs around muddy estuaries and river mouths, and that's the trick in aquariums too: soft sand, brackish-ish water, and food it can actually find (they're not great hunters).
Foa brachygramma
This is a tiny Hawaiian cardinalfish that hangs around sheltered shallows - think seagrass, algae, and rubble - and it even wanders into brackish and sometimes fresh water. Its vibe is classic cardinalfish: mellow, a little shy, and way more interesting once the lights go down. Also cool trivia: the males mouthbrood the eggs.
Rineloricaria henselii
Rineloricaria henselii is a small loricariid (whiptail) catfish from southern Brazil (reported from the Cubatão River, Santa Catarina) reaching about 7.5 cm standard length.
Farlowella acus
Farlowella acus is that classic twig-looking whiptail that can sit on wood and basically disappear - it really does look like a little stick with fins. It is super chill and spends most of its time grazing and picking at surfaces, so it does best in a mature tank with stable water and plenty of stuff to cling to.