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 303 species
Trichromis salvini
Trichromis salvini is that loud, high-contrast Central American cichlid that goes from kind of plain as a juvenile to straight-up neon yellow with blue spangling and a black spot-stripe as it matures. Its attitude ramps up hard once it pairs off, and it will absolutely claim a chunk of the tank like it owns the lease.
Oxynoemacheilus seyhanensis
Oxynoemacheilus seyhanensis is a small Turkish brook loach from the Seyhan river system area - a bottom-hugger that wants clean, oxygen-rich water and lots of cover down low. In the wild it is a river fish and it's listed as Critically Endangered, so its real "cool factor" is more about being a rare, localized species than something you'll reliably see for sale.
Xenotoca doadrioi
This is a little Mexican goodeid livebearer where the males do that awesome "blue body + orange/red tail" thing when they color up. They're super active, always grazing and pecking at surfaces, and they really appreciate cooler, clean, well-oxygenated water compared to your typical tropical livebearers.
Campylomormyrus phantasticus
This is a big, oddball elephantnose from Cameroon's Sanaga River, and it lives in that dim, sandy-bottom world where it uses a weak electric field to "see" and hunt. The long downturned snout is not just for looks - it is basically a living metal detector for worms and tiny critters in the substrate. Plan around its size and nighttime feeding habits, and it becomes one of those fish you can watch for hours.
Denticetopsis sauli
This is one of those ultra-tiny South American whale catfish that most people will never see in the trade - it tops out around 2 cm. Its whole vibe is "secretive little bottom-hanger" from blackwater-style habitats, so in an aquarium it would spend a lot of time tucked into leaf litter and small caves if you could even source one.
Vimba elongata
Vimba elongata (Seerussling) is a temperate European cyprinid from the Danube basin, especially alpine lakes in southern Bavaria and Upper Austria. It is a slim, silvery bottom-forager that roots around for small benthic critters, more like a wild "nase/bream" vibe than a typical colorful aquarium fish.
Megalamphodus eques
Serpaes are those fiery little red tetras with the black "comma" behind the gill-super eye-catching in a planted tank. They're active and a bit spicy, so they do best in a real group where they'll squabble with each other instead of nipping slower tankmates. When they're settled in, you get this constant cruising-and-chasing vibe that makes the tank feel really alive.
Capoeta capoeta
Capoeta capoeta is a big, streamy scraper-barb from western Asia that spends a lot of its time cruising rivers and grazing on plant matter. Think of it like a coldwater-ish, current-loving algae grazer that gets way too large and active for most typical community tanks.
Onychostoma breve
Onychostoma breve is a small river carp from the Yangtze River system in China, topping out around 14.6 cm standard length. Its whole vibe is a streamlined, current-loving minnow that wants lots of oxygen and moving water, so it is way happier in a river-style setup than a typical calm community tank.
Xiphophorus continens
Xiphophorus continens is a tiny little wild-type livebearer from the Rio Panuco drainage in Mexico, and the males have just a short "stub" sword instead of the big flowing one you see on common swordtails. They really shine in a planted, oxygen-rich tank with some current, where you can watch the males do their low-key "sneaker" style mating behavior and the females quietly cruise the plants.
Hasemania nana
These little guys are like tiny sparks in the tank-silvery bodies with those warm orange "copper" fins that really pop when they're happy and colored up. Keep them in a proper group and you'll see them cruise around together, doing that classic tetra "we're all going this way now" thing, and the males will sometimes flash at each other without it turning into real drama.
Yasuhikotakia lecontei
Yasuhikotakia lecontei is a chunky, fast-water botia from the Mekong area that loves to wedge itself into rock gaps by day and come out to cruise and forage at dusk. It is a real little bulldozer with snails and other bottom critters, and it gets way more confident (and entertaining) when you keep it in a proper group.