Search Species
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Found 654 species
Capitlineata silhouette goby
Silhouettea capitlineata
This is a super tiny tropical marine goby that basically lives its life glued to the bottom, blending in and keeping a low profile. The neat name clue is the "head lines" - it was named for dark lines running down from the eye, so its face patterning is part of the whole deal. Because it tops out around an inch, its care info in the aquarium hobby is pretty scarce compared to bigger, commonly-sold gobies.
Caqueta whiptail catfish
Sturisoma caquetae
Sturisoma caquetae is one of those sleek, sturgeon-bodied whiptails that just glides around like a little underwater paper airplane. It stays pretty slim and spends its time clinging to hard surfaces and grazing biofilm, so it does best in a mature, super-clean tank with good flow and oxygen.
Cardinal Tetra
Paracheirodon axelrodi
The Cardinal Tetra is a small, vibrant freshwater fish known for its striking iridescent blue and red coloring. It is closely related to the Neon Tetra but can be distinguished by the extended red stripe that runs the entire length of its body. People love keeping Cardinal Tetras in their tanks because they're peaceful and great at schooling together.
Carens barb
Enteromius carens
Enteromius carens is a small freshwater cyprinid from West-Central Africa. It is known from the Kouilou basin to the Chiloango basin (Republic of the Congo, Cabinda/Angola, and DR Congo), with a single record from the Foulakari River in the lower Congo basin. Maximum recorded size is about 3.2 cm standard length.
Cartier's deepwater snake eel
Benthenchelys cartieri
A deepwater marine snake eel (Ophichthidae) known from the Philippines (Western Central Pacific). FishBase notes members of the genus Benthenchelys are pelagic; recorded depth range to 1168 m. Not an established aquarium species.
Cascudo-viola
Loricariichthys anus
Large Loricariinae whiptail (Loricariichthys) from southern Brazil/Uruguay–lower Paraná basins; benthic detritus/iliophagous-omnivorous feeder. Males show an elongated lower lip during the reproductive season, and the genus includes facultative air-breathers; provide clean, well-oxygenated water and fine sand.
Celestial Pearl Danio
Danio margaritatus
This is the little "galaxy fish" everyone stops to stare at-dark bluish body sprinkled with pearly spots and those punchy orange/red fins. They're peaceful but kinda shy, and you'll see the best color and the cutest little male sparring displays when you keep a proper group in a heavily planted tank with gentle flow.
Chapala chub
Yuriria chapalae
A hardy-looking Mexican minnow from Lake Chapala, the Chapala chub spends its days cruising open water in loose groups and picking at small critters. It grows to about 4 inches and does best in cool to warm, hard, alkaline water like its home lake. It is a conservation-sensitive endemic, so it is more a species to admire and protect than one you will see for sale.
Chapultepec splitfin
Girardinichthys viviparus
This is a little goodeid livebearer from the Valley of Mexico where it comes from cool, oxygen-rich waters - think more like a temperate pond fish than a tropical livebearer. Males can get really sharp-looking with black edging (sometimes almost fully black) on the fins, and they do best when you keep them on the cool side with big, regular water changes.
Cherry barb
Rohanella titteya
Cherry barbs are small Sri Lankan barbs; males intensify to deep red (especially when breeding). They're generally peaceful and can be shy unless kept in a group, and they look best in planted aquariums with subdued lighting and darker substrate.
Chessboard blenny
Starksia sluiteri
A tiny reef-dweller with bold chessboard spots, this little blenny spends most of its time peeking from rubble and rock crevices. It is fun to watch during feeding time as it darts out to snag tiny crustaceans, then zips back to its hidey-hole.
Chessboard cichlid
Dicrossus filamentosus
Dicrossus filamentosus is that classy little blackwater dwarf cichlid with the crisp "chessboard" pattern and, in mature males, a super cool lyretail with streamers. It's generally mellow and shy, but when a female is guarding eggs/fry she turns into a tiny, fearless bulldozer (and it's honestly awesome to watch). Give them soft, clean water, leaf litter, and calm tankmates and they really settle in and show their best colors.