Species
Browsing 933 species. Use the filters below to narrow down.
Mailfish
FishCleidopus gloriamaris
A living lantern: the fish that carries its own lights on its jaw.
Malabar Baril
FishBarilius gatensis
A bold, fast-moving hill stream fish that needs equally assertive tankmates.
Malawi Squeaker
FishSynodontis njassae
Lake Malawi's only squeaker, built for cichlid tanks and rocky hideouts.
Malawi Thick-lipped Cichlid
FishAbactochromis labrosus
A rock-dwelling Malawi cichlid with an unusually approachable temperament for the genus.
Malayan Loach
FishPangio semicincta
The fish sold as kuhli loach is almost certainly this one instead.
Mandarin Dragonet
FishSynchiropus splendidus
One of the most vividly colored fish on the reef, and one of the trickiest to keep.
Manduba, Slopehead Catfish
FishAgeneiosus inermis
A giant, predatory catfish with one of the most unusual reproductive strategies in freshwater.
Many Barred Distichodus
FishDistichodus fasciolatus
A boldly barred Congo giant that stays surprisingly peaceful for its size.
Many-spined Cowfish
FishLactoria diaphana
A boxy, horned oddity that roams reefs and mudflats across the entire Indo-Pacific.
Marbled Goby
FishOxyeleotris marmorata
A motionless giant that eats anything fitting in its enormous mouth.
Marbled Goby
FishPomatoschistus marmoratus
A cryptic little sand-dweller from Europe's coasts, full of quiet personality.
Marbled Lungfish
FishProtopterus aethiopicus aethiopicus
An ancient African lungfish that breathes air and can outlast a drought.
Marbled Synodontis
FishSynodontis schoutedeni
A beginner-friendly Congo catfish with bold marbled patterning that deepens with age.
Mario's cory
FishCorydoras pinheiroi
A rare Amazonian cory that can breathe air and live for decades.
Maroon Clownfish
FishPremnas biaculeatus
The boldest clownfish in the hobby, and it knows it.
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.
Mccosker's Flasher
FishParacheilinus mccoskeri
A tiny reef wrasse where the males put on a color show like no other.
Mcculloch's Anemonefish
FishAmphiprion mccullochi
A rare island endemic with a bold personality that punches well above its size.
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 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.
Menezesi Cory
FishAspidoras menezesi
A tiny Brazilian catfish with a surprisingly long lifespan and a Corydoras personality.
Meteor Basslet
FishLiopropoma susumi
A secretive reef cave-dweller with bold pinstripes and peaceful manners.
Mexican Barnacle Blenny
FishAcanthemblemaria macrospilus
A pint-sized reef blenny that claims abandoned barnacle shells as its castle.
Mexican Jawfish
FishOpistognathus mexicanus
A burrowing Mexican charmer that watches the world from its self-made home.
Micro Cory
FishCorydoras hastatus
Tiny armored catfish that defies its family by cruising the midwater column.
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.
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.
Moore's Lamprologus
FishVariabilichromis moorii
A Lake Tanganyika rockdweller with a fascinating family life and devious brood tactics.