Species
Browsing 331 species. Use the filters below to narrow down.
Malawi Thick-lipped Cichlid
FishAbactochromis labrosus
A rock-dwelling Malawi cichlid with an unusually approachable temperament for the genus.
Malaya Shrimp
InvertCaridina babaulti
A hardy, color-shifting dwarf shrimp that surprises you with every molt.
Marbled Crayfish
InvertProcambarus virginalis
The only known parthenogenetic crayfish. Every individual is female and a perfect clone.
Marbled Synodontis
FishSynodontis schoutedeni
A beginner-friendly Congo catfish with bold marbled patterning that deepens with age.
Marble Shrimp
InvertSaron marmoratus
A boldly patterned reef shrimp that hides by day and roams by night.
Maxima Clam
InvertTridacna maxima
A living jewel for the reef tank, with a lifespan that can outlast your mortgage.
Mayan Cichlid
FishCichlasoma urophthalmus
A brackish-tolerant bruiser that can handle conditions few other cichlids can.
Melon Barb
FishHaludaria fasciata
An underrated Indian barb that rewards you with vivid male rivalry displays.
Metallic Topminnow
FishGirardinus metallicus
A livebearer from Cuba with a glinting metallic sheen and real historical quirks.
Mexican Dwarf Crayfish
InvertCambarellus patzcuarensis
Tiny, peaceful, and full of personality. The dwarf crayfish that plays well with others.
Mexican tetra
FishAstyanax mexicanus
The cave fish that lost its eyes and gained extraordinary senses.
Midas Cichlid
FishAmphilophus citrinellus
A bold, intelligent cichlid that recognizes its owner and demands respect in return.
Midget Chromis
FishChromis acares
A tiny schooling damsel that brings reef-like energy to modest-sized tanks.
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.
Molly Miller
FishScartella cristata
A tidepool blenny with a wild mohawk and an appetite for algae.
Moorish Idol
FishZanclus canescens
Iconic reef wanderer with a dramatic look that rarely thrives in captivity.
Moth Catfish
FishHara jerdoni
A moth-like micro catfish from Indian hill streams, best kept in groups.
Mozambique tilapia
FishOreochromis mossambicus
One of the world's most invasive fish, sold as food and kept as a curiosity.
Multicolor Sea Star
InvertLinckia multifora
A reef sea star that comes in a kaleidoscope of mottled patterns, each one unique.
Mustard Squeaker
FishSynodontis albolineata
A small, community-friendly squeaker from Cameroon and Gabon that rarely reaches the trade.
Nassarius Snail
InvertNassarius vibex
A tireless sand-sifting scavenger that keeps reef substrate clean and aerated.
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 Dottyback
FishPseudochromis aldabraensis
A bold little reef dweller that punches well above its weight in personality.
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 Pleco
FishHypancistrus sp. "L066"
A boldly patterned pleco with a variable maze-like network across its body.
Nile Tilapia
FishOreochromis niloticus niloticus
One of the world's most adaptable fish, but a challenging aquarium resident.
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.
Okavango Tilapia
FishTilapia ruweti
A compact African cichlid with big personality from wild swamp habitats.
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.