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 48 species
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.
Sphaeramia nematoptera
This little cardinalfish looks like it got dressed in a rush-polka-dot back half, bold stripes up front, and that neon-orange tail spot that really pops under reef lights. It's a super chill, "hang in the shadows" kind of fish that likes to hover around rockwork and just cruise calmly all day. If you keep a small group, they'll often tuck in together and make your tank feel instantly more alive without causing any drama.
Synodontis nigriventris
The upside-down catfish is a small African mochokid catfish famous for swimming and feeding belly-up, especially under cover and along the water's surface. It has a light belly (often with darker spotting), a darker back, and prominent barbels, and it is most active at dusk and night. Peaceful overall, it does best in groups with plenty of hiding places like driftwood and caves.
Tanichthys albonubes
White Clouds are tiny little stream minnows with that neat glowing stripe and red-tipped fins, and they look way better the cooler you keep them. They're super active in a group and do this constant "busy schooling" thing in the top/middle of the tank-really fun fish when you give them space to zip around.
Tateurndina ocellicauda
Peacock gudgeons are little jewel-fish from eastern Papua New Guinea with that awesome "eye spot" on the tail and a ton of blue/yellow/red speckling. They're gentle most of the time, but the males get pretty into cave/crevice territory when they're thinking about spawning-and watching the male guard and fan eggs is seriously cool.
Trichogaster chuna
Honey gouramis are those little chill labyrinth fish that spend a lot of time cruising the upper half of the tank and "feeling" around with their long thread-like belly fins. Give them plants (especially floaters) and calm tankmates and they really settle in-males can glow that warm honey/orange color and will build bubble nests at the surface.
Trigonostigma espei
This is that tiny coppery-orange rasbora with the sharp "lambchop" black wedge on its side-super slick-looking in a planted tank. Keep a proper little gang of them and they'll cruise the midwater together, flashing color way more than when they're kept in a sad little trio. They're gentle, easy to feed, and honestly one of my favorite small-school fish for calmer community setups.
Trigonostigma hengeli
This is the little "orange neon line + tiny black wedge" rasbora that absolutely glows when you keep it over a dark substrate with plants and a bit of tannin-stained water. The best part is how tight they school-get a decent group and they move like one fish, super calming to watch.
Trigonostigma heteromorpha
Harlequin rasboras are those little coppery-orange fish with the bold black "wedge" on their sides that somehow look even better once they're cruising in a group. Give them a nice school and some plants to weave through and they'll do this tight, synchronized swimming thing that's honestly kind of hypnotic.
Xiphophorus hellerii
This is the classic livebearer swordtail-the males grow that long tail "sword" and spend half their day showing off and chasing each other around. They're super active, always grazing and cruising, and they'll absolutely fill your tank with babies if you keep males and females together. Give them room to swim, hard-ish water, and some plants for cover and they're basically in their happy place.
Xiphophorus hellerii
Swordtails are busy, always-on-the-move livebearers, and the males' "sword" tail extension is the whole show-lots of displaying and posturing in the open water. They're tough as nails in hard, slightly alkaline water, but in tight tanks the males will absolutely bicker and chase each other around.
Xiphophorus maculatus
This is the classic platy-the little livebearer that's been bred into a ridiculous number of colors, but the wild-type is more of an olive-brown fish with dark blotches. They're super active, always cruising for snacks, and you'll see fun social behavior when you keep them in a small group. Also: if you mix males and females, you'll almost certainly end up with fry-these guys don't waste any time.