Species
Browsing 1,134 species. Use the filters below to narrow down.
Nassarius Snail
InvertNassarius vibex
A tireless sand-sifting scavenger that keeps reef substrate clean and aerated.
necklace nassa
InvertNassarius distortus
A tidy little scavenger from the Yaeyama Islands with a distinctively ornate shell.
Nemacheilus guentheri
FishMesonoemacheilus guentheri
A pebble-stream loach from India with famously unpredictable mood swings.
Nemacheilus petrubanarescui
FishMesonoemacheilus petrubanarescui
A shy Indian stream loach best kept in groups to bring it out of hiding.
Neon Blue Rasbora
FishSundadanio axelrodi
Tiny blackwater gem that rewards patient keepers with dazzling group behavior.
Neon Dottyback
FishPseudochromis aldabraensis
A bold little reef dweller that punches well above its weight in personality.
Neon Dwarf Rainbowfish
FishMelanotaenia praecox
Tiny rainbowfish that turns up the color when kept in a proper shoal.
Neon Goby
FishGobiosoma oceanops
A tiny reef cleaner that punches way above its weight.
Neon Tetra
FishParacheirodon innesi
The fish that turned millions of people into aquarium keepers.
Network Cory
FishCorydoras reticulatus
A fine-patterned bottom dweller that lives surprisingly long in good company.
Network Pleco
FishHypancistrus sp. "L066"
A boldly patterned pleco with a variable maze-like network across its body.
Niger Triggerfish
FishOdonus niger
Red teeth, blue body, and a personality that commands the whole tank.
Night Aulonocara
FishAulonocara hueseri
A sand-sifting peacock cichlid with deep blue coloration from Lake Malawi's rocky shores.
Nijssen's cory
FishCorydoras nijsseni
A rare Rio Negro cory with bold patterning and a surprisingly long lifespan.
Nile Tilapia
FishOreochromis niloticus niloticus
One of the world's most adaptable fish, but a challenging aquarium resident.
Norman's Lampeye
FishPoropanchax normani
Tiny West African killifish with glowing blue eyes that shimmer in low light.
Northern longsnose cory
FishCorydoras septentrionalis
A long-lived Orinoco bottom-dweller that breathes air and blinks at you.
Northern Purplespotted Gudgeon
FishMogurnda mogurnda
A bold Australian bottom-dweller with real personality and surprising breeding behavior.
Northern Rainbowfish
FishMelanotaenia affinis
One of the first rainbowfish in the hobby, now available in several wild forms.
Oaxaca Cichlid
FishVieja zonata
A rare Mexican cichlid with big personality and even bigger space requirements.
Obliquidens Hap
FishHaplochromis obliquidens
A scrappy Victorian cichlid with a taste for algae and a bold personality.
Ocellaris Clownfish
FishAmphiprion ocellaris
The iconic reef fish that lives fearlessly among stinging anemone tentacles.
Ocellated Wrasse
FishHalichoeres melasmapomus
A bold cheek-spotted wrasse with a wide Pacific range and big personality.
Ocellifer Catfish
FishSynodontis ocellifer
A hardy West African catfish with bold spots and a long, distinctive adipose fin.
Odessa Barb
FishPethia padamya
A barb with a mysterious past and males that blaze red when rivals are near.
Ogre Catfish
FishAsterophysus batrachus
A gulper catfish that can swallow prey nearly twice its own size.
Okavango Tilapia
FishTilapia ruweti
A compact African cichlid with big personality from wild swamp habitats.
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.
Oneline Tetra
FishNannaethiops unitaeniatus
A peaceful little African schooler that deserves far more attention than it gets.
One-spot Eartheater
FishSatanoperca lilith
A rarely traded eartheater with a single bold flank spot and surprising social depth.
Onespot Squeaker
FishSynodontis notata
A daytime-active catfish with a bold personality to match its bold spot.
Opsarius ardens
FishBarilius ardens
A fast-moving Western Ghats minnow that needs space, speed, and bold companions.
Opsarius malabaricus
FishBarilius malabaricus
A fast, bold river minnow from India's Western Ghats that needs room to move.
Oranda Goldfish
FishCarassius auratus var. oranda
The velvet-capped fancy goldfish that rewards patient, attentive keeping.
Orange dwarf toothcarp
FishNeoheterandria elegans
A tiny Colombian livebearer with a fascinating near-mammalian reproductive twist.