Species
Browsing 807 species. Use the filters below to narrow down.
Longnose Hawkfish
FishOxycirrhites typus
A perching ambush predator that claims gorgonians as its personal throne.
Longsnouted Pipefish
FishDoryichthys martensii
A slender, pipe-bodied hunter that lets the male handle all the parenting duties.
Longspine Cardinal
FishZoramia leptacantha
A tiny reef cardinalfish that gathers in shimmering clouds above branching coral.
Longspine seahorse
FishHippocampus histrix
A thorny Indo-Pacific seahorse with dramatic spines and a delicate nature.
Long whiskers catfish
FishMystus gulio
A schooling brackish catfish that grows surprisingly large and breathes air.
Lubbock's Wrasse
FishCirrhilabrus lubbocki
A social, zooplankton-hunting wrasse that thrives in lively reef communities.
Lyretail anthias
FishPseudanthias squamipinnis
Schooling reef anthias that shifts from female orange to vivid male purple.
Lyretail Apistogramma
FishApistogramma pantalone
A tiny Peruvian dwarf cichlid with courtship rituals unlike any other Apistogramma.
Macculloch's Rainbowfish
FishMelanotaenia maccullochi
A compact, peaceful rainbowfish that rewards group keeping with vivid male displays.
Macmaster's Dwarf Cichlid
FishApistogramma macmasteri
A compact Colombian cichlid with big personality and fascinating cave-breeding behavior.
Maeklong Chameleon Catfish
FishAcrochordonichthys septentrionalis
A skin-shedding hill stream catfish that keeps its tankmates on their toes.
Mahachai Betta
FishBetta mahachaiensis
A nipa palm specialist from coastal Thailand with iridescent blue-green armor.
Mailfish
FishCleidopus gloriamaris
A living lantern: the fish that carries its own lights on its jaw.
Malawi Eyebiter
FishDimidiochromis compressiceps
The Lake Malawi ambush hunter famous for a truly unsettling feeding habit.
Malawi Hawk Cichlid
FishAristochromis christyi
Lake Malawi's sneaky ambush predator that rolls sideways to fool its prey.
Malayan Leaffish
FishPristolepis fasciata
A bold, deep-bodied predator from Southeast Asian floodplains with real personality.
Malayan Loach
FishPangio semicincta
The fish sold as kuhli loach is almost certainly this one instead.
Malay glass catfish
FishOmpok eugeneiatus
A shy, schooling catfish from Southeast Asian peat swamps and flooded forests.
Manduba, Slopehead Catfish
FishAgeneiosus inermis
A giant, predatory catfish with one of the most unusual reproductive strategies in freshwater.
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 Hatchetfish
FishCarnegiella strigata
A deep-keeled surface dweller that brings life to the upper third of any tank.
Marbled Lungfish
FishProtopterus aethiopicus aethiopicus
An ancient African lungfish that breathes air and can outlast a drought.
Marbled Lyretail
FishFundulopanchax marmoratus
A rare Cameroonian killifish with detailed marbled patterning and a preference for cool water.
Marine Betta
FishCalloplesiops altivelis
A cave-dwelling mimic that fools predators by impersonating a moray eel.
Masked Puffer
FishArothron diadematus
A bold Red Sea puffer with a dramatic masked face and serious bite.
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.
Mbu Puffer
FishTetraodon mbu
A Congo giant that demands respect, space, and a very sturdy tank.
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.
Media Luna Pupfish
FishCualac tessellatus
A rare Mexican pupfish with a conservation story worth getting behind.
Mediterranean Fried Egg Jellyfish
InvertCotylorhiza tuberculata
The Mediterranean jellyfish that looks exactly like a fried egg.
Mediterranean Killifish
FishAphanius fasciatus
A rare Mediterranean killifish that rewards dedicated keepers with fascinating, constant activity.
Mekong Croaking Gourami
FishTrichopsis schalleri
The tiny gourami that actually produces sounds to resolve conflicts and court mates.