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
Neblinichthys pilosus
This is that weirdly awesome little pleco with the punk-rock bristles - mature males get those spiky odontodes on the head and snout that make it look like it rolled out of a 1980s show. It stays pretty small for a pleco, but it is a true wild-type fish from remote Venezuela, so it does best in a clean, oxygen-rich setup with lots of flow and hiding spots.
Corydoras pygmaeus
Pygmy cories are tiny little armored catfish that do this super-cool thing most cories don't: they'll cruise around in the midwater in a loose school instead of just shuffling along the bottom. Give them a soft sandy substrate, lots of plants to weave through, and a proper group, and they turn into nonstop little busybodies.
Fundulopanchax puerzli
Fundulopanchax puerzli is a freshwater killifish from western Cameroon (Lower Wouri system), inhabiting small rainforest streams and swampy/slow-moving waters. It reaches about 8 cm TL, and is typically maintained in soft water (around 2–5 dGH) with slightly acidic to near-neutral pH (around 6.8), subdued lighting, and dense cover/spawning mops or fine plants.
Qianlabeo striatus
Qianlabeo striatus is a tiny, river-dwelling labeonin carp from Guizhou, China (Pearl River drainage) that stays under about 3.5 inches. It is the only species in its genus, and in the aquarium hobby it is basically a "data-poor" fish - you will likely be guessing a bit on care unless you can match it to its exact natural stream conditions.
Mikrogeophagus ramirezi
Rams are tiny little cichlids with big-time attitude (in the cutest way) and insane sparkle-those blues, yellows, and that black face bar really pop when they're happy. They're also one of the warmer-water dwarf cichlids, and they'll show off pair behavior and even spawn on flat stones if you keep the tank clean and calm.
Pseudomugil luminatus
This little blue-eye is basically a tiny fireworks show-males flash electric blue eyes and red/orange fins and spend half the day showing off to each other. Keep them in a nice-sized group and you'll see constant "dancing" and fin-flaring in the open water, especially over dark substrate and plants.
Wallaceochromis rubrolabiatus
This is a tiny West African river cichlid that stays around 2.5 inches, and the adults get that really neat reddish-purple color around the lips that gives it its name. In a tank it acts more like a shy little cave cichlid than a bruiser - give it sand, leaf litter, and a couple tight caves and it settles in and starts doing the whole pair-bond and territory routine.
Etheostoma maydeni
This is a tiny Cumberland River drainage darter with a really neat telltale feature: the red pigment right on the lips. Its whole vibe is hanging out on the bottom in calmer pools along big creeks and rivers, tucked around boulders and woody cover.
Channa andrao
Channa andrao is one of those "how is this real?" dwarf snakeheads-tiny, super colorful, and way more personable than you'd expect from a predator. It's a mouthbrooder, hangs near the surface a lot (air-breather), and it's happiest in a plant-choked, hidey-hole setup with a tight-fitting lid because, yep, it can jump.
Wallaciia regani
This is one of the smaller pike cichlids, with that sleek, torpedo shape and the attitude to match - super fun to watch when it cruises and "stalks" around wood and leaf litter. It's a cave-spawning little predator that will absolutely snack on tiny fish, but compared to big pikes its size it can be surprisingly manageable if you give it space and lots of cover.
Sewellia lineolata
This is the little "stingray-shaped" loach that parks itself on rocks and glass like it's magnetized, then cruises around in the current like a tiny river skate. Give it cool, super-oxygenated, fast-moving water and lots of smooth stones with biofilm, and it'll spend all day grazing and doing hilarious little dominance shuffles with its own kind.
Xiphophorus roseni
Xiphophorus roseni is a Mexican livebearer that shows up in the hobby mostly as a "weird/obscure Xiphophorus" rather than a mainstream platy or swordtail. The big twist is that a lot of sources treat it as a natural hybrid form (often discussed as variatus x couchianus), so it is more of a "locality oddball" than a clearly distinct, widely traded species.