Species
Browsing 661 species. Use the filters below to narrow down.
Northern Rainbowfish
FishMelanotaenia affinis
One of the first rainbowfish in the hobby, now available in several wild forms.
Odessa Barb
FishPethia padamya
A barb with a mysterious past and males that blaze red when rivals are near.
Olga
FishCorydoras simulatus
A rarely documented Colombian cory with a color pattern that keeps even experts guessing.
Olive danio
FishDanio dangila
A large, active danio with impressively long barbels and a rarely seen wild side.
One-lined Pencilfish
FishNannostomus unifasciatus
A tiny pencilfish that swims at a permanent angle, day and night.
Oneline Tetra
FishNannaethiops unitaeniatus
A peaceful little African schooler that deserves far more attention than it gets.
Opae Ula
InvertHalocaridina rubra
Tiny Hawaiian shrimp that thrives on neglect in brackish anchialine pools.
Opsarius ardens
FishBarilius ardens
A fast-moving Western Ghats minnow that needs space, speed, and bold companions.
Orange-fin Barb
FishBarbus eutaenia
A sleek African barb from fast, rocky streams that rewards patient keepers.
Orangefin Tetra
FishBryconops affinis
A restless, fast-moving shoaler from the Guiana Shield's coastal streams.
Orange Head
FishGeophagus sp. "Orange Head"
A vividly capped cichlid that rewards patient keepers with fascinating mouthbrooding family life.
Orangespine Unicornfish
FishNaso elegans
A bold reef grazer with vivid orange tail spines and a distinctly regal profile.
Orangespot Surgeonfish
FishAcanthurus olivaceus
A bold orange shoulder-stripe makes this reef surgeon impossible to mistake.
Ornate rainbowfish
FishRhadinocentrus ornatus
A tiny Australian rainbowfish from wild, tea-stained wallum streams.
Otocinclus
FishOtocinclus vittatus
Tiny algae-grazing catfish that plasters itself to glass and plants alike.
Otocinclus Catfish (Tank-Bred)
FishOtocinclus macrospilus
The most commonly sold oto, fragile at first but rewarding once settled.
Oyapock Cory
FishCorydoras condiscipulus
A long-lived Oyapock armored catfish that breathes air and blinks its eyes.
Oyapock Eartheater
FishGeophagus camopiensis
A rarely seen eartheater with elaborate mouthbrooding behavior and real personality.
Pajama cardinalfish
FishSphaeramia nematoptera
Polka dots, bold racing stripe, and calm enough for any peaceful community reef.
Palauan Riffle Goby
FishStiphodon pelewensis
A tiny riffle-dweller that vanishes into the sand when startled.
Panda Barb
FishHaludaria melanampyx
A lively hill-stream barb from India's Western Ghats with a two-tone shimmer.
Panda Garra
FishGarra flavatra
A boldly patterned Burmese stream fish that's part algae grazer, part personality.
Panda Loach
FishYaoshania pachychilus
Bold panda stripes as a juvenile, but adults fade to something far subtler.
Parkinson's Rainbowfish
FishMelanotaenia parkinsoni
A Papua New Guinea gem that rewards patient keepers with spectacular adult color.
Parnaíba Eartheater
FishGeophagus parnaibae
A sand-sifting cichlid from Brazil that's gentler than its reputation suggests.
Pastaza Corydora
FishCorydoras pastazensis
A long-lived Ecuadorian armored catfish with a fascinating air-breathing trick.
Peach Fairy Basslet
FishPseudanthias dispar
A schooling reef beauty that brings the open ocean's energy to your tank.
Peacock Loach
FishLepidocephalichthys annandalei
A rare loach with peacock-patterned tail fins, seldom seen in the trade.
Pearl Danio
FishDanio albolineatus
A shimmering, active schooler that thrives in community tanks with minimal fuss.
Pearl Robber
FishMicralestes stormsi
A lively Congo basin shoaler that brings energy to the mid-water column.
Pencilfish
FishNannostomus minimus
Tiny, timid, and barely an inch long. A pencilfish for the dedicated nano keeper.
Penguin Fish
FishThayeria obliqua
The original penguin tetra, now overshadowed by its more common cousin.
Pentazona Barb
FishDesmopuntius hexazona
A dainty six-banded barb that thrives in big, lively groups
Pentazona Barb
FishDesmopuntius pentazona
The rarely genuine pentazona barb. Most sold are actually its twin species.
Peppered Cory
FishCorydoras paleatus
Hardy, armored, and social. A true workhorse of the community tank.
Peru black cory
FishCorydoras semiaquilus
A long-lived Amazonian bottom-dweller with a surprisingly expressive face.