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Species

Browsing 661 species. Use the filters below to narrow down.

Northern Rainbowfish

Northern Rainbowfish

Fish

Melanotaenia affinis

One of the first rainbowfish in the hobby, now available in several wild forms.

Odessa Barb

Odessa Barb

Fish

Pethia padamya

A barb with a mysterious past and males that blaze red when rivals are near.

Olga

Olga

Fish

Corydoras simulatus

A rarely documented Colombian cory with a color pattern that keeps even experts guessing.

Olive danio

Olive danio

Fish

Danio dangila

A large, active danio with impressively long barbels and a rarely seen wild side.

One-lined Pencilfish

One-lined Pencilfish

Fish

Nannostomus unifasciatus

A tiny pencilfish that swims at a permanent angle, day and night.

Oneline Tetra

Oneline Tetra

Fish

Nannaethiops unitaeniatus

A peaceful little African schooler that deserves far more attention than it gets.

Opae Ula

Opae Ula

Invert

Halocaridina rubra

Tiny Hawaiian shrimp that thrives on neglect in brackish anchialine pools.

Opsarius ardens

Opsarius ardens

Fish

Barilius ardens

A fast-moving Western Ghats minnow that needs space, speed, and bold companions.

Orange-fin Barb

Orange-fin Barb

Fish

Barbus eutaenia

A sleek African barb from fast, rocky streams that rewards patient keepers.

Orangefin Tetra

Orangefin Tetra

Fish

Bryconops affinis

A restless, fast-moving shoaler from the Guiana Shield's coastal streams.

Orange Head

Orange Head

Fish

Geophagus sp. "Orange Head"

A vividly capped cichlid that rewards patient keepers with fascinating mouthbrooding family life.

Orangespine Unicornfish

Orangespine Unicornfish

Fish

Naso elegans

A bold reef grazer with vivid orange tail spines and a distinctly regal profile.

Orangespot Surgeonfish

Orangespot Surgeonfish

Fish

Acanthurus olivaceus

A bold orange shoulder-stripe makes this reef surgeon impossible to mistake.

Ornate rainbowfish

Ornate rainbowfish

Fish

Rhadinocentrus ornatus

A tiny Australian rainbowfish from wild, tea-stained wallum streams.

Otocinclus

Otocinclus

Fish

Otocinclus vittatus

Tiny algae-grazing catfish that plasters itself to glass and plants alike.

Otocinclus Catfish (Tank-Bred)

Otocinclus Catfish (Tank-Bred)

Fish

Otocinclus macrospilus

The most commonly sold oto, fragile at first but rewarding once settled.

Oyapock Cory

Oyapock Cory

Fish

Corydoras condiscipulus

A long-lived Oyapock armored catfish that breathes air and blinks its eyes.

Oyapock Eartheater

Oyapock Eartheater

Fish

Geophagus camopiensis

A rarely seen eartheater with elaborate mouthbrooding behavior and real personality.

Pajama cardinalfish

Pajama cardinalfish

Fish

Sphaeramia nematoptera

Polka dots, bold racing stripe, and calm enough for any peaceful community reef.

Palauan Riffle Goby

Palauan Riffle Goby

Fish

Stiphodon pelewensis

A tiny riffle-dweller that vanishes into the sand when startled.

Panda Barb

Panda Barb

Fish

Haludaria melanampyx

A lively hill-stream barb from India's Western Ghats with a two-tone shimmer.

Panda Garra

Panda Garra

Fish

Garra flavatra

A boldly patterned Burmese stream fish that's part algae grazer, part personality.

Panda Loach

Panda Loach

Fish

Yaoshania pachychilus

Bold panda stripes as a juvenile, but adults fade to something far subtler.

Parkinson's Rainbowfish

Parkinson's Rainbowfish

Fish

Melanotaenia parkinsoni

A Papua New Guinea gem that rewards patient keepers with spectacular adult color.

Parnaíba Eartheater

Parnaíba Eartheater

Fish

Geophagus parnaibae

A sand-sifting cichlid from Brazil that's gentler than its reputation suggests.

Pastaza Corydora

Pastaza Corydora

Fish

Corydoras pastazensis

A long-lived Ecuadorian armored catfish with a fascinating air-breathing trick.

Peach Fairy Basslet

Peach Fairy Basslet

Fish

Pseudanthias dispar

A schooling reef beauty that brings the open ocean's energy to your tank.

Peacock Loach

Peacock Loach

Fish

Lepidocephalichthys annandalei

A rare loach with peacock-patterned tail fins, seldom seen in the trade.

Pearl Danio

Pearl Danio

Fish

Danio albolineatus

A shimmering, active schooler that thrives in community tanks with minimal fuss.

Pearl Robber

Pearl Robber

Fish

Micralestes stormsi

A lively Congo basin shoaler that brings energy to the mid-water column.

Pencilfish

Pencilfish

Fish

Nannostomus minimus

Tiny, timid, and barely an inch long. A pencilfish for the dedicated nano keeper.

Penguin Fish

Penguin Fish

Fish

Thayeria obliqua

The original penguin tetra, now overshadowed by its more common cousin.

Pentazona Barb

Pentazona Barb

Fish

Desmopuntius hexazona

A dainty six-banded barb that thrives in big, lively groups

Pentazona Barb

Pentazona Barb

Fish

Desmopuntius pentazona

The rarely genuine pentazona barb. Most sold are actually its twin species.

Peppered Cory

Peppered Cory

Fish

Corydoras paleatus

Hardy, armored, and social. A true workhorse of the community tank.

Peru black cory

Peru black cory

Fish

Corydoras semiaquilus

A long-lived Amazonian bottom-dweller with a surprisingly expressive face.