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Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Found 337 species
Fewpored gudgeon
Oxyeleotris paucipora
A tiny sleeper goby from New Guinea, this little gudgeon hangs out in weedy backwaters and leaf-littered creeks and does short dash-and-grab hunts for bite-size critters. Think of it as a shy, bottom-perching micro-predator that appreciates calm water, cover, and gentle tankmates.
Fire-eyed loach
Barbucca diabolica
This is one of those tiny, oddball loaches that spends its whole day scooting along wood and rocks like a little vacuum cleaner, and those glowing red eyes are the whole vibe. It is peaceful and shy, but it gets way more confident in a dim, cover-filled tank with leaf litter and lots of little hideouts. Biggest thing people miss is feeding - it is a bottom grazer and pretty much will not chase food up in the water column.
Fly River garfish
Zenarchopterus novaeguineae
This is a surface-cruising freshwater halfbeak from New Guinea and far north Australia that likes warm, weedy shallows and will hang near the top in little shoals. In the wild it grazes a lot of plant material but will also snap up insects, so it acts like a picky topwater grazer with a "snatch anything that lands" vibe. If you ever try one in a tank, think "tight lid, calm flow, lots of surface cover" first.
Foersch's killifish
Nothobranchius foerschi
Nothobranchius foerschi is an annual killifish from coastal Tanzania that lives in temporary pools, so it is basically built to grow up fast, spawn hard, and not hang around forever. The males are ridiculously colorful and do a lot of little sparring and display posturing, which is half the fun of keeping them in a species tank.
Forktail blue-eye (Forktail rainbowfish)
Pseudomugil furcatus
Pseudomugil furcatus is one of those little fish that never sits still-in a good way. When you keep a proper group, the males do these harmless fin-flaring "showdowns" and the forked tail + blue eyes really pop, especially in a planted tank with some open swimming room. It's a peaceful, small schooling fish from Papua New Guinea rainforest streams, and it's an easy way to add constant movement to a tank.
Fork-tailed Yunnan loach
Yunnanilus forkicaudalis
This is a tiny Chinese stone loach that sticks close to the bottom and cruises around like a little mouse, poking into sand and between small rocks. Its wild home is pretty localized in Yunnan, so its more of a "cool oddball" than something you will reliably see at every fish shop. Treat it like a small, peaceful stream/edge-of-lake loach and it will reward you with nonstop foraging behavior.
Fushun gudgeon
Gobio fushunensis
Gobio fushunensis is a little bottom-hugging gudgeon from China that spends its time nosing around the substrate for tiny foods. FishBase lists it topping out around 5.6 cm standard length, so think of it as a small, subtle stream fish rather than a flashy centerpiece.
Ganhe Yunnan loach
Yunnanilus ganheensis
This is a tiny little stone loach from a single area in Yunnan, China (Ganhe, Xundian County). Its description mentions a neat pattern of square-ish dark spots along the sides, and like most small nemacheilid loaches it is basically a bottom-hugging, cover-loving micro-predator that will spend its time picking around the substrate and crevices.
Gecko loach
Homaloptera confuzona
This is one of those hillstream-style loaches that looks and acts like a little underwater lizard, scooting and clinging over rocks in fast water. They stay fairly small but they are absolute oxygen junkies, so the tank setup matters way more than chasing perfect numbers. Also, they get mixed up with similar Homaloptera species a lot in the trade - the name confuzona is honestly pretty fitting.
Giraffe catfish
Auchenoglanis occidentalis
This is the classic giraffe catfish - a big, chill African bottom-cruiser with that cool giraffe-like blotchy pattern. It spends a lot of time nosing around the substrate for food and gets way too large for most "monster fish" setups people try to cram it into. If you can actually give it the tank footprint and filtration it deserves, its a super fun, laid-back giant.
Glass blue-eye
Kiunga ballochi
This is a tiny little PNG blue-eye with a mostly see-through body and subtle yellow-and-black fin markings that look really slick when a group is sparring and flashing. In the wild its range is extremely small (Upper Fly River system near Kiunga/Tabubil), so its basically a conservation fish as much as an aquarium fish. If you ever run into them, think calm, planted, clean-water setup and a decent-sized group so they feel secure.
Glass catfish
Kryptopterus vitreolus
This is the truly transparent "glass" catfish from Thailand - you can literally see the spine and organs when its happy and settled in. The big trick is keeping them in a proper group and giving them calmer, dimmer conditions; once they feel secure, they cruise around together and look unreal in the water column.