Species
Browsing 934 species. Use the filters below to narrow down.
Minor Tetra
FishHyphessobrycon minor
A peaceful little tetra from Guyana that's seldom seen in the hobby.
Molly
FishPoecilia sphenops
A livebearer classic that can thrive from freshwater all the way to full marine conditions.
Montecristo Cichlid
FishVieja heterospila
A robust Central American cichlid from some of Mexico's most storied river systems.
Montezuma Swordtail
FishXiphophorus montezumae
A wild swordtail with an absurdly long tail sword that rivals its own body length.
Moonlight Gourami
FishTrichogaster microlepis
A silver-scaled Southeast Asian gourami with a gentle nature and labyrinth breathing.
Mosaic Corydoras
FishCorydoras haraldschultzi
A long-lived armored catfish with detailed reticulated markings and a surprisingly social personality.
Moth Catfish
FishHara jerdoni
A moth-like micro catfish from Indian hill streams, best kept in groups.
Mottled Catfish
FishAmarginops ornatus
A sleek Congo predator with ornate markings and serious attitude toward tankmates.
Mottled Loach
FishAcanthocobitis botia
A peaceful, quirky bottom-dweller with a false eye that fools predators.
Mountain Barbel
FishAmphilius platychir
A sleek African stream catfish built for life in fast, rocky currents.
Moustache Catfish
FishAuchenipterus nuchalis
A surface-roaming catfish with bizarre ossified barbels and secretive nocturnal habits.
Mozambique tilapia
FishOreochromis mossambicus
One of the world's most invasive fish, sold as food and kept as a curiosity.
Mustard Squeaker
FishSynodontis albolineata
A small, community-friendly squeaker from Cameroon and Gabon that rarely reaches the trade.
Mystic Mystus
FishMystus mysticetus
A gregarious Southeast Asian catfish with a uniquely lateral-eyed look.
Naked Characin
FishGymnocharacinus bergi
A scaleless South American oddity from one of the world's most isolated streams.
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 Dwarf Rainbowfish
FishMelanotaenia praecox
Tiny rainbowfish that turns up the color when kept in a proper shoal.
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.
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.
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.