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
Dwarf pleco
Parotocinclus cristatus
A tiny Parotocinclus from coastal streams around Ilheus, Bahia, it acts like a mini pleco that spends its day grazing biofilm on rocks, wood, and leaves. Keep a small group in clean, well-oxygenated water and you will see them constantly scooting and shimmying around while they pick at algae.
Dwarf stingray
Urotrygon nana
This is a tiny tropical round stingray from the eastern Pacific that spends its time cruising and burying in soft sand in very shallow water. It stays relatively small for a stingray (still a real ray, not a "mini" aquarium species), and it does carry a venomous tail spine, so it is absolutely a hands-off animal.
Eastern longfin goby
Favonigobius lentiginosus
This is a little sand-loving coastal goby that hangs around estuaries, mangroves, tidepools, and sandy flats, and it does that classic goby thing of perching and scooting along the bottom. Color-wise its pretty subtle but really neat up close - sandy brown with distinct bars and head striping - and it spends a lot of time hunting tiny crustaceans in the substrate.
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.
East Indies siltgoby
Amblygobius cheraphilus
This is a tiny little sand-and-silt goby from the western Pacific that hangs around soft-bottom areas near reefs and spends its time picking/sifting for small critters. Its look is super clean and subtle - grayish with two reddish-brown stripes and a dark spot on the gill cover - and it is one of those fish that really wants a fine, mature substrate to graze on. Because it is not a standard-import aquarium fish, most of the hard care numbers you see for it are best treated as 'typical Amblygobius/sand-sifting goby' rather than species-proven.
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Elongate mudskipper (pointed-tailed goby)
Pseudapocryptes elongatus (syn. Pseudapocryptes lanceolatus)
This is that super-cool "mudskipper-ish" goby that mostly stays in the water, but will park itself in the shallows and periscope its eyes above the surface like it's keeping watch. It's an obligate air-breather from tidal rivers/estuaries, so it really appreciates shallow, brackish setups with soft mud/sand and gentle flow-more of a mangrove vibe than a typical community tank.
Elongate shore-eel
Alabes elongata
Alabes elongata is a tiny, eel-shaped marine shore fish from Western Australia that lives right in the shallow reef and seagrass zone. It looks like a little slippery noodle with reduced fins, and it spends its time tucked into weed/reef structure rather than cruising the open water. This is the kind of oddball you appreciate for its weird body plan and secretive lifestyle, not because its going to be out front begging for food.
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.