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Species

Browsing 734 species. Use the filters below to narrow down.

Mosaic Corydoras

Mosaic Corydoras

Fish

Corydoras haraldschultzi

A long-lived armored catfish with detailed reticulated markings and a surprisingly social personality.

Moth Catfish

Moth Catfish

Fish

Hara jerdoni

A moth-like micro catfish from Indian hill streams, best kept in groups.

Mottled Loach

Mottled Loach

Fish

Acanthocobitis botia

A peaceful, quirky bottom-dweller with a false eye that fools predators.

Myanmar Redfin 2

Myanmar Redfin 2

Fish

Oreichthys sp. "Myanmar Redfin 2"

A tiny, feisty shoaler from Myanmar with a bold caudal blotch and plenty of personality.

Mystic Mystus

Mystic Mystus

Fish

Mystus mysticetus

A gregarious Southeast Asian catfish with a uniquely lateral-eyed look.

Naked Characin

Naked Characin

Fish

Gymnocharacinus bergi

A scaleless South American oddity from one of the world's most isolated streams.

Nana Rasbora

Nana Rasbora

Fish

Microdevario nanus

Tiny Myanmar schooler with a bold dorsal-fin blotch and big personality in small packages.

Nemacheilus guentheri

Nemacheilus guentheri

Fish

Mesonoemacheilus guentheri

A pebble-stream loach from India with famously unpredictable mood swings.

Nemacheilus petrubanarescui

Nemacheilus petrubanarescui

Fish

Mesonoemacheilus petrubanarescui

A shy Indian stream loach best kept in groups to bring it out of hiding.

Neon Blue Rasbora

Neon Blue Rasbora

Fish

Sundadanio axelrodi

Tiny blackwater gem that rewards patient keepers with dazzling group behavior.

Neon Dwarf Rainbowfish

Neon Dwarf Rainbowfish

Fish

Melanotaenia praecox

Tiny rainbowfish that turns up the color when kept in a proper shoal.

Neon Highfin Barb

Neon Highfin Barb

Fish

Oreichthys crenuchoides

A tiny barb with a sail-like dorsal fin and surprisingly complex social dynamics.

Neon Tetra

Neon Tetra

Fish

Paracheirodon innesi

The fish that turned millions of people into aquarium keepers.

Network Cory

Network Cory

Fish

Corydoras reticulatus

A fine-patterned bottom dweller that lives surprisingly long in good company.

Nijssen's cory

Nijssen's cory

Fish

Corydoras nijsseni

A rare Rio Negro cory with bold patterning and a surprisingly long lifespan.

Nilgiri Danio

Nilgiri Danio

Fish

Devario neilgherriensis

A rarely seen Indian hill stream danio with iridescent blue and yellow flanks.

Northern longsnose cory

Northern longsnose cory

Fish

Corydoras septentrionalis

A long-lived Orinoco bottom-dweller that breathes air and blinks at you.

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.

Opsarius ardens

Opsarius ardens

Fish

Barilius ardens

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

Opsarius malabaricus

Opsarius malabaricus

Fish

Barilius malabaricus

A fast, bold river minnow from India's Western Ghats that needs room to move.

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.

Orinoco Tetra

Orinoco Tetra

Fish

Hemigrammus barrigonae

A rare Orinoco tetra that rewards patient keepers willing to seek it out.

Ornate Corydoras

Ornate Corydoras

Fish

Corydoras ornatus

A long-lived Tapajós bottom-dweller that thrives in sociable, peaceful groups.

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.

Palauan Riffle Goby

Palauan Riffle Goby

Fish

Stiphodon pelewensis

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