Search Species
Search for fish species by common or scientific name, or use filters to browse by water type, size, temperament, and difficulty.
Found 289 species
Doce River moenkhausia (lambari)
Moenkhausia doceana
Moenkhausia doceana is a Brazilian characin from the Doce and Mucuri river basins - basically a regional "lambari" type tetra. In the wild it hangs in the water column of clear, moving streams and picks off insect larvae and other little buggy bits, so it tends to do best in a roomy tank with good flow and a group of its own kind.
Dragon fin tetra
Diapoma terofali
This is a little South American characin from the Parana-Uruguay system that stays pretty small but has a neat "glandulocaudine" twist - males have a special caudal gland tied to breeding. In a calm planted setup they act like a typical small tetra-ish fish, cruising midwater and looking best in a group.
Dwarf chain loach
Ambastaia sidthimunki
This is the little "Sid" loach people fall in love with once they see a whole group doing their goofy zoomies and clicking at each other. They stay tiny but act like big loaches - always busy, always social, and way more confident when you keep them in a proper gang. Give them sand, hiding spots, and lots of buddies and they really shine.
Dwarf Neon Rainbowfish
Melanotaenia praecox
These little rainbows are like living sparks-electric blue bodies with those punchy red/orange fins, and they look even better the more you keep together. They're constantly cruising the mid-water, flashing at each other and doing that classic rainbowfish "look at me" shimmy, especially when the lights first come on or at feeding time.
Eastern mudminnow
Umbra pygmaea
Eastern mudminnow (Umbra pygmaea) is a small freshwater umbrid native to eastern North America that inhabits slow, vegetated waters such as swamps, ponds, and ditches. It feeds mainly on insect larvae and small aquatic invertebrates and is noted for tolerance of low-oxygen wetland habitats.
Ember tetra
Hyphessobrycon amandae
Ember tetras are tiny little orange "glow fish" tetras that look insanely good over a dark substrate with plants and a bit of leaf litter. They're happiest in a proper little gang, and when they settle in and feel safe the whole school starts moving like one warm, flickery cloud.
Emperor tetra
Nematobrycon palmeri
Emperor tetras are those classy little Colombian characins with the dark horizontal stripe and the males' awesome trident/lyretail look. Keep a decent-sized group and you'll see the males do their little posturing displays without really hurting each other, especially in a planted tank with some shade.
Endler's livebearer
Poecilia wingei
Endlers are basically tiny little firecrackers-males stay small but flash a ton of neon color and never stop cruising the tank. They're super social and active, and if you keep males and females together you'll have babies before you've even finished tweaking the aquascape.
Engkarit
Osteochilus partilineatus
Osteochilus partilineatus is a tiny little bony-lipped barb from West Kalimantan (Borneo) that lives in deep, blackwater forest streams with flowing water. Its small adult size is the cool part here - it is one of those "wait, that is an Osteochilus?" species - but it is not really a standard aquarium fish, so most of its care is best approached like a sensitive blackwater river/stream cyprinid.
Epulu alestid
Brachyalestes epuluensis
Brachyalestes epuluensis is a Congo Basin African tetra relative from the Epulu River system in DR Congo. It is a mid-sized, torpedo-shaped schooling fish (max about 11 cm standard length) that would act a lot like other African tetras in the tank - always cruising and looking for food. The tricky part is there is basically no aquarium-specific care info published for this exact species, so you keep it successfully by treating it like a small-to-medium riverine alestid and focusing on clean, well-oxygenated water and room to swim.
Eregli minnow
Garra kemali
Garra kemali is a tiny Turkish Garra that hangs close to the bottom and spends a lot of time grazing surfaces for edible bits. It comes from marshes and lakes rather than the typical fast riffles people associate with many other Garra, and its wild populations are considered endangered, so its story is more conservation-focused than aquarium-trade focused.
Eriarcha rhamdella
Rhamdella eriarcha
Rhamdella eriarcha is a shy little South American three-barbeled catfish (Heptapteridae) that spends a lot of time tucked under wood and cruising the bottom after dark. It gets a lot bigger than most people expect for a "small" catfish, so think more "subtle nocturnal predator" than "tiny cleanup fish".