Species
Browsing 698 species. Use the filters below to narrow down.
Marbled Climbing Perch
FishCtenopoma weeksii
A cryptic Congo predator that vanishes into leaf litter before your eyes.
Marbled Goby
FishOxyeleotris marmorata
A motionless giant that eats anything fitting in its enormous mouth.
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.
Masken Apisto
FishApistogramma paulmuelleri
A tiny Peruvian dwarf cichlid with outsized color and surprisingly bold personality.
Maulbrüter Apisto
FishApistogramma barlowi
The only Apistogramma that mouthbroods. Or doesn't, depending on its mood.
MEGA Orange Dwarf Cichlid (Apistogramma cacatuoide) - Tank Bred
FishApistogramma cacatuoide
A selectively bred cockatoo cichlid dripping in vivid orange from dorsal to tail.
Mekong Bumblebee Goby
FishBrachygobius mekongensis
A pint-sized brackish goby with bold banded markings and a big personality.
Mekong Puffer
FishTetraodon suvattii
A bottom-hugging Mekong puffer that buries itself in river mud.
Mexican Barnacle Blenny
FishAcanthemblemaria macrospilus
A pint-sized reef blenny that claims abandoned barnacle shells as its castle.
Mexican Tetra
FishAstyanax fasciatus
A bold, wide-ranging tetra with a predatory streak that surprises many keepers.
Midas Blenny
FishEcsenius midas
A reef blenny that mimics anthias in color, movement, and social behavior.
Milkspotted Puffer
FishChelonodon patoca
A schooling puffer from mangrove estuaries that gets surprisingly large.
Mimic Surgeonfish
FishAcanthurus pyroferus
A juvenile master of disguise that grows into a bold reef grazer.
Minkley's Cichlid
FishHerichthys minckleyi
A rare Mexican cichlid from one of the world's most extraordinary desert springs.
Mokele-mbembe Bichir
FishPolypterus mokelembembe
An ancient, armored predator from the Congo's murky depths.
Molly Miller
FishScartella cristata
A tidepool blenny with a wild mohawk and an appetite for algae.
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.
Moonspot Licorice Gourami
FishParosphromenus linkei
A pint-sized blackwater gourami with head-down courtship displays unlike any other.
Moustache Catfish
FishAuchenipterus nuchalis
A surface-roaming catfish with bizarre ossified barbels and secretive nocturnal habits.
Moustache Jawfish
FishOpistognathus lonchurus
A bold little burrower with a face full of personality.
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.
Multifasciatus
FishNeolamprologus multifasciatus
Possibly the world's smallest cichlid, big attitude packed into a tiny shell.
Mystery Wrasse
FishPseudocheilinus ocellatus
A secretive reef wrasse with bold colors and a talent for disappearing.
Mystic Mystus
FishMystus mysticetus
A gregarious Southeast Asian catfish with a uniquely lateral-eyed look.
Namak
FishAphanius arakensis
A rare Iranian killifish relative worth keeping for conservation as much as curiosity.
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.
Neon Highfin Barb
FishOreichthys crenuchoides
A tiny barb with a sail-like dorsal fin and surprisingly complex social dynamics.
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.
Nile Bichir
FishPolypterus bichir
A living fossil that breathes air and moves like an eel.
Nile squeaker
FishSynodontis schall
The unpredictable bruiser of the Synodontis world, not for community tanks.