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Found 159 species

AI-generated illustration of Ocellaris clownfish
Marine
AI Generated
Photo

Ocellaris clownfish

Amphiprion ocellaris

Ocellaris clowns are that classic orange clownfish look-three white bars, a little black edging, and a ton of attitude packed into a small fish. They'll "pick a spot" in the tank (often a corner or a coral) and do that cute hover-wiggle thing, and a bonded pair will usually settle in fast and act like they own the place.

Small Semi-aggressive Beginner
Min. 20 gal
AI-generated illustration of Orange chromide
Brackish
AI Generated
Photo

Orange chromide

Pseudetroplus maculatus (syn. Etroplus maculatus)

This is that cute little Indian/Sri Lankan cichlid with the big black "shoulder" spot and a warm gold/orange glow when it's happy. It'll do the classic cichlid thing where it gets a bit pushy when breeding, but most of the time it's pretty chill-especially if you keep a small group. Super cool bonus: the parents actively tend the eggs and fry, and the babies even graze on the parents' skin mucus for a bit.

Small Peaceful Intermediate
Min. 30 gal
AI-generated illustration of Pacific blue-eye
Freshwater
AI Generated
Photo

Pacific blue-eye

Pseudomugil signifer

Pacific blue-eyes are tiny Aussie "blue-eye" fish with those unreal electric-blue eyes and a nice little shimmer when they're in a group. Give them plants, gentle flow, and a proper shoal, and the males will posture and flare at each other in this super cool, non-lethal (usually) displayy way. They'll also tolerate a bit of salt (brackish), which is handy if you're doing an estuary-style setup.

Small Peaceful Beginner
Min. 20 gal
AI-generated illustration of Pajama Cardinalfish
Marine
AI Generated
Photo

Pajama Cardinalfish

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.

Small Peaceful Beginner
Min. 20 gal
AI-generated illustration of Panda Corydoras (Panda Cory)
Freshwater
AI Generated
Photo

Panda Corydoras (Panda Cory)

Corydoras panda

Corydoras panda is a small, bottom-dwelling catfish known for its pale body with distinctive black patches over the eyes and near the tail, resembling a panda's markings. It is a peaceful, social schooling species that does best in groups and appreciates soft substrate and clean, well-oxygenated water. Like other corydoras, it forages constantly and should be offered sinking foods rather than relying on leftovers.

Small Peaceful Beginner
Min. 20 gal
AI-generated illustration of Panda dwarf cichlid
Freshwater
AI Generated
Photo

Panda dwarf cichlid

Apistogramma nijsseni

A small Peruvian dwarf cichlid with bold black patches that pop against a bright yellow female and steel-blue males. It is a cave-spawner with charming parental care and likes tannin-stained, leaf-litter streams, so a blackwater-style tank really brings out its behavior.

Nano Semi-aggressive Intermediate
Min. 16 gal
AI-generated illustration of Panda loach
Freshwater
AI Generated
Photo

Panda loach

Yaoshania pachychilus

Hillstream loach from fast, highly oxygenated mountain streams; thrives in a mature, algae/biofilm-rich river-style aquarium with strong flow and smooth rocks. Peaceful but social, and best kept in groups where they become more active and confident.

Small Peaceful Intermediate
Min. 20 gal
AI-generated illustration of Peacock gudgeon
Freshwater
AI Generated
Photo

Peacock gudgeon

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.

Small Peaceful Beginner
Min. 15 gal
AI-generated illustration of Peridot tetra
Freshwater
AI Generated
Photo

Peridot tetra

Jupiaba acanthogaster

A small South American characin that flashes a subtle green-gold sheen, which is where the peridot name comes from. In the wild it often forages in groups and will opportunistically follow larger bottom-disturbing fishes to pick off exposed morsels.

Small Peaceful Intermediate
Min. 16 gal
AI-generated illustration of Persian loach
Freshwater
AI Generated
Photo

Persian loach

Oxynoemacheilus persa

This is a little bottom-hugging stone loach from Iran that spends its time cruising the substrate and poking around for food. It does best when you set the tank up like a cool, clean stream - lots of oxygen, flow, smooth rocks, and hiding spots - and you will see way more natural behavior.

Medium Semi-aggressive Advanced
Min. 30 gal
AI-generated illustration of Peruvian tetra
Freshwater
AI Generated
Photo

Peruvian tetra

Hyphessobrycon peruvianus

A tiny tetra from the upper Amazon, this fish shows a clean white lateral stripe over a dark lower body with a subtle blue sheen. Keep it in a good-sized shoal and you will see tight midwater schooling and quick color flashes when the group turns.

Nano Peaceful Intermediate
Min. 21 gal
AI-generated illustration of Poso halfbeak
Freshwater
AI Generated
Photo

Poso halfbeak

Nomorhamphus celebensis

This is a cool little Sulawesi halfbeak that spends most of its time cruising the surface and picking food right off the top. They do best in a small group with lots of surface cover (floating plants are perfect), and they really reward you if you keep the water clean and stable. Also worth knowing: a lot of info online mixes up their exact habitat, and that can lead people to keep them too warm.

Small Peaceful Intermediate
Min. 20 gal
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