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Species

Browsing 951 species. Use the filters below to narrow down.

Neon Blue Rasbora

Neon Blue Rasbora

Fish

Sundadanio axelrodi

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

Neon Dottyback

Neon Dottyback

Fish

Pseudochromis aldabraensis

A bold little reef dweller that punches well above its weight in personality.

Neon Dwarf Rainbowfish

Neon Dwarf Rainbowfish

Fish

Melanotaenia praecox

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

Neon Goby

Neon Goby

Fish

Gobiosoma oceanops

A tiny reef cleaner that punches way above its weight.

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.

Niger Triggerfish

Niger Triggerfish

Fish

Odonus niger

Red teeth, blue body, and a personality that commands the whole tank.

Nijssen's cory

Nijssen's cory

Fish

Corydoras nijsseni

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

Nile Tilapia

Nile Tilapia

Fish

Oreochromis niloticus niloticus

One of the world's most adaptable fish, but a challenging aquarium resident.

Norman's Lampeye

Norman's Lampeye

Fish

Poropanchax normani

Tiny West African killifish with glowing blue eyes that shimmer in low light.

Northern longsnose cory

Northern longsnose cory

Fish

Corydoras septentrionalis

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

Northern Purplespotted Gudgeon

Northern Purplespotted Gudgeon

Fish

Mogurnda mogurnda

A bold Australian bottom-dweller with real personality and surprising breeding behavior.

Northern Rainbowfish

Northern Rainbowfish

Fish

Melanotaenia affinis

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

Oaxaca Cichlid

Oaxaca Cichlid

Fish

Vieja zonata

A rare Mexican cichlid with big personality and even bigger space requirements.

Ocellaris Clownfish

Ocellaris Clownfish

Fish

Amphiprion ocellaris

The iconic reef fish that lives fearlessly among stinging anemone tentacles.

Ocellated Wrasse

Ocellated Wrasse

Fish

Halichoeres melasmapomus

A bold cheek-spotted wrasse with a wide Pacific range and big personality.

Odessa Barb

Odessa Barb

Fish

Pethia padamya

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

Ogre Catfish

Ogre Catfish

Fish

Asterophysus batrachus

A gulper catfish that can swallow prey nearly twice its own size.

Okavango Tilapia

Okavango Tilapia

Fish

Tilapia ruweti

A compact African cichlid with big personality from wild swamp habitats.

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.

Oneline Tetra

Oneline Tetra

Fish

Nannaethiops unitaeniatus

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

One-spot Eartheater

One-spot Eartheater

Fish

Satanoperca lilith

A rarely traded eartheater with a single bold flank spot and surprising social depth.

Onespot Squeaker

Onespot Squeaker

Fish

Synodontis notata

A daytime-active catfish with a bold personality to match its bold spot.

Opsarius ardens

Opsarius ardens

Fish

Barilius ardens

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

Oranda Goldfish

Oranda Goldfish

Fish

Carassius auratus var. oranda

The velvet-capped fancy goldfish that rewards patient, attentive keeping.

Orange dwarf toothcarp

Orange dwarf toothcarp

Fish

Neoheterandria elegans

A tiny Colombian livebearer with a fascinating near-mammalian reproductive twist.

Orangefin Anemonefish

Orangefin Anemonefish

Fish

Amphiprion chrysopterus

A large, bold anemonefish from the wide Pacific with serious territorial attitude.

Orangefin Tetra

Orangefin Tetra

Fish

Bryconops affinis

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

Orangespot Surgeonfish

Orangespot Surgeonfish

Fish

Acanthurus olivaceus

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

Orangestriped Triggerfish

Orangestriped Triggerfish

Fish

Balistapus undulatus

One of the reef's most aggressive personalities packed into a boldly patterned body.

Orinoco Eartheater

Orinoco Eartheater

Fish

Biotodoma wavrini

A slender eartheater that thrives in groups and rewards patient, experienced keepers.

Oscar

Oscar

Fish

Astronotus ocellatus

The cichlid that recognizes your face and rearranges its own tank.

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.

Pacific Double-saddle Butterflyfish

Pacific Double-saddle Butterflyfish

Fish

Chaetodon ulietensis

A boldly patterned butterflyfish that pairs for life in the wild.