Species
Browsing 1,801 species. Use the filters below to narrow down.
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.
Mayan Cichlid
FishCichlasoma urophthalmus
A brackish-tolerant bruiser that can handle conditions few other cichlids can.
Maya Tetra
FishHyphessobrycon compressus
The founding species of its entire genus, rarely seen in the hobby.
Mbu Puffer
FishTetraodon mbu
A Congo giant that demands respect, space, and a very sturdy tank.
Media Luna Pupfish
FishCualac tessellatus
A rare Mexican pupfish with a conservation story worth getting behind.
Mediterranean Killifish
FishAphanius fasciatus
A rare Mediterranean killifish that rewards dedicated keepers with fascinating, constant activity.
Medusa pleco
FishAncistrus ranunculus
A flat-headed, rock-hugging pleco from Brazil's wild river rapids.
MEGA Orange Dwarf Cichlid (Apistogramma cacatuoide) - Tank Bred
FishApistogramma cacatuoide
A selectively bred cockatoo cichlid dripping in vivid orange from dorsal to tail.
Meklong Spiny Eel
FishMacrognathus meklongensis
A secretive Thai spiny eel that comes out of hiding when hunger calls.
Mekong Bumblebee Goby
FishBrachygobius mekongensis
A pint-sized brackish goby with bold banded markings and a big personality.
Mekong Croaking Gourami
FishTrichopsis schalleri
The tiny gourami that actually produces sounds to resolve conflicts and court mates.
Mekong Freshwater Stingray
FishDasyatis laosensis
A true river stingray from the Mekong, built for life on sandy bottoms.
Mekong Giant Catfish
FishPangasianodon gigas
One of the largest freshwater fish on Earth, and critically endangered.
Mekong Giant Salmon Carp
FishAaptosyax grypus
A rare, river-running predator from the Mekong that grows to epic proportions.
Mekong Ricefish
FishOryzias mekongensis
A tiny Mekong native with vivid fin markings and surprisingly easy breeding habits.
Mekong Tiger Perch
FishDatnioides undecimradiatus
A boldly barred Mekong predator with a long memory and a short temper.
Melon Barb
FishHaludaria fasciata
An underrated Indian barb that rewards you with vivid male rivalry displays.
Mendezi Dwarf Cichlid
FishApistogramma mendezi
A blackwater dwarf cichlid with a surprisingly gentle nature and fascinating cave-breeding habits.
Menezesi Cory
FishAspidoras menezesi
A tiny Brazilian catfish with a surprisingly long lifespan and a Corydoras personality.
Merah Dwarf Barb
FishBoraras merah
Thumbnail-sized Borneo native that rewards patience with vivid schooling displays.
Merry Widow
FishPhallichthys amates
A low-key Central American livebearer that thrives where flashier fish struggle.
Metallic Topminnow
FishGirardinus metallicus
A livebearer from Cuba with a glinting metallic sheen and real historical quirks.
Meta Tetra
FishHyphessobrycon metae
A tricky-to-identify Orinoco tetra that rewards patient, well-planned community tanks.
Mexican tetra
FishAstyanax mexicanus
The cave fish that lost its eyes and gained extraordinary senses.
Mexican Tetra
FishAstyanax fasciatus
A bold, wide-ranging tetra with a predatory streak that surprises many keepers.
Micro Cory
FishCorydoras hastatus
Tiny armored catfish that defies its family by cruising the midwater column.
Micro Glassfish
FishDanionella translucida
One of the tiniest freshwater fish alive, and surprisingly easy to breed.
Midas Cichlid
FishAmphilophus citrinellus
A bold, intelligent cichlid that recognizes its owner and demands respect in return.
Millennium Cory
FishCorydoras spectabilis
The 'millennium cory'. A peaceful schooler with spotted flair from Brazil's Guaporé basin.
Mini Chocolate Gourami
FishParasphaerichthys lineatus
A tiny Burmese labyrinth fish with some of the most unpredictable breeding behavior in the hobby.
Mini-piranha
FishSerrasalmus sanchezi
A misidentified mini-piranha relative with razor teeth and a fiery red throat.
Minkley's Cichlid
FishHerichthys minckleyi
A rare Mexican cichlid from one of the world's most extraordinary desert springs.
Minor Tetra
FishHyphessobrycon minor
A peaceful little tetra from Guyana that's seldom seen in the hobby.
Mokele-mbembe Bichir
FishPolypterus mokelembembe
An ancient, armored predator from the Congo's murky depths.
Molly
FishPoecilia sphenops
A livebearer classic that can thrive from freshwater all the way to full marine conditions.