Species
Browsing 341 species. Use the filters below to narrow down.
Malabar Baril
FishBarilius bakeri
A fast, bold stream fish that needs equally confident tankmates to thrive.
Malabar Baril
FishBarilius gatensis
A bold, fast-moving hill stream fish that needs equally assertive tankmates.
Malawi Thick-lipped Cichlid
FishAbactochromis labrosus
A rock-dwelling Malawi cichlid with an unusually approachable temperament for the genus.
Marbled Crayfish
InvertProcambarus virginalis
The only known parthenogenetic crayfish. Every individual is female and a perfect clone.
Marbled Crayfish
InvertCherax peknyi
A bold Australian freshwater crayfish with personality to spare.
Marbled Synodontis
FishSynodontis schoutedeni
A beginner-friendly Congo catfish with bold marbled patterning that deepens with age.
Maroon Clownfish
FishAmphiprion tricinctus
Three bold white bars on deep orange. The Marshall Islands' own anemonefish.
Maroon Clownfish
FishPremnas biaculeatus
The boldest clownfish in the hobby, and it knows it.
Mexican Tetra
FishAstyanax fasciatus
A bold, wide-ranging tetra with a predatory streak that surprises many keepers.
Minkley's Cichlid
FishHerichthys minckleyi
A rare Mexican cichlid from one of the world's most extraordinary desert springs.
Molly Miller
FishScartella cristata
A tidepool blenny with a wild mohawk and an appetite for algae.
Montecristo Cichlid
FishVieja heterospila
A robust Central American cichlid from some of Mexico's most storied river systems.
Moustache Catfish
FishAuchenipterus nuchalis
A surface-roaming catfish with bizarre ossified barbels and secretive nocturnal habits.
Multibar Angelfish
FishCentropyge multifasciata
A deep-dwelling pygmy angel that rarely makes it into the hobby.
Multicolor angelfish
FishCentropyge multicolor
A deep-reef dweller with bold coloring that rarely makes it to store shelves.
Mystic Mystus
FishMystus mysticetus
A gregarious Southeast Asian catfish with a uniquely lateral-eyed look.
Nemacheilus guentheri
FishMesonoemacheilus guentheri
A pebble-stream loach from India with famously unpredictable mood swings.
Neon Dottyback
FishPseudochromis aldabraensis
A bold little reef dweller that punches well above its weight in personality.
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.
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.
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.
Okavango Tilapia
FishTilapia ruweti
A compact African cichlid with big personality from wild swamp habitats.
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.
Orange dwarf toothcarp
FishNeoheterandria elegans
A tiny Colombian livebearer with a fascinating near-mammalian reproductive twist.
Orinoco
FishAndinoacara sp. "Orinoco"
A mellow Orinoco cichlid that pairs easily and rewards patient breeders.
Oscar
FishAstronotus ocellatus
The cichlid that recognizes your face and rearranges its own tank.
Panamanian Eartheater
FishGeophagus crassilabris
A rare Panamanian cichlid with a reddish glow and fascinating sand-sifting habits.
Panda Clownfish
FishAmphiprion polymnus
A boldly patterned clownfish with a preference for sandy, silty homes.
Panda Uaru
FishUaru fernandezyepezi
A rare Orinoco cichlid that few hobbyists ever get to keep.
Parrot Pacu
FishOssubtus xinguense
A plant-munching Xingu oddity that surprises keepers with its feisty personality.
Pearl Cichlid
FishGeophagus brasiliensis
Iridescent eartheater with big personality and bigger territorial instincts.