Species
Browsing 1,801 species. Use the filters below to narrow down.
Monkey Bay Cichlid
FishAlticorpus mentale
A deep-water Malawi cichlid from sandy depths rarely seen in the hobby.
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.
Moonspot Licorice Gourami
FishParosphromenus linkei
A pint-sized blackwater gourami with head-down courtship displays unlike any other.
Moore's Lamprologus
FishVariabilichromis moorii
A Lake Tanganyika rockdweller with a fascinating family life and devious brood tactics.
Mosaic Corydoras
FishCorydoras haraldschultzi
A long-lived armored catfish with detailed reticulated markings and a surprisingly social personality.
Mosquitofish
FishGambusia affinis
The notorious mosquitofish: tough, prolific, and not a friendly neighbor.
Moth Catfish
FishHara jerdoni
A moth-like micro catfish from Indian hill streams, best kept in groups.
Mottled Bichir
FishPolypterus weeksii
A living fossil from the Congo with a swim bladder that doubles as a lung.
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.
Mullya Garra
FishGarra mullya
A hardy Indian stream fish with a sucker disc built for fast-moving water.
Multifasciatus
FishNeolamprologus multifasciatus
Possibly the world's smallest cichlid, big attitude packed into a tiny shell.
Mustard Squeaker
FishSynodontis albolineata
A small, community-friendly squeaker from Cameroon and Gabon that rarely reaches the trade.
Myanmar Arowana
FishScleropages inscriptus
The only arowana with geometric line markings etched across its head and flanks.
Myanmar Redfin 2
FishOreichthys sp. "Myanmar Redfin 2"
A tiny, feisty shoaler from Myanmar with a bold caudal blotch and plenty of personality.
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.
Namak
FishAphanius arakensis
A rare Iranian killifish relative worth keeping for conservation as much as curiosity.
Nana Rasbora
FishMicrodevario nanus
Tiny Myanmar schooler with a bold dorsal-fin blotch and big personality in small packages.
Nantaiensis Goby
FishRhinogobius nantaiensis
A feisty Taiwanese stream goby that rewards patient, experienced keepers.
Ndobhoi Cichlid
FishChalinochromis sp. "Ndobhoi"
A blotch-patterned Tanganyikan rock dweller with fascinating colony breeding behavior.
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 Goby
FishStiphodon ornatus
A tiny, colorful stream goby from Sumatra that rewards patient observers.
Neon Highfin Barb
FishOreichthys crenuchoides
A tiny barb with a sail-like dorsal fin and surprisingly complex social dynamics.
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.