Species
Browsing 1,329 species. Use the filters below to narrow down.
Long-Spined Sea Urchin
InvertDiadema antillarum
A bold, spiny reef grazer that keeps algae in check around Caribbean reefs.
Long-spined Tree Coral
CoralPlumarella longispina
A deep-sea tree coral bringing wild Pacific structure to the reef tank.
Longspine seahorse
FishHippocampus histrix
A thorny Indo-Pacific seahorse with dramatic spines and a delicate nature.
Long Tentacle Anemone
InvertMacrodactyla doreensis
Graceful, swaying tentacles make this anemone a natural centerpiece for clownfish pairings.
Long whiskers catfish
FishMystus gulio
A schooling brackish catfish that grows surprisingly large and breathes air.
Lonnberg's Aphyosemion
FishAphyosemion loennbergii
A rare Cameroonian killifish from shaded rainforest streams, worth the extra effort.
Loretoensi Cory or Loretoensis Cory
FishCorydoras loretoensis
A long-finned little bottom-dweller that thrives in lively, social groups.
Loreto panda cory
FishCorydoras ortegai
A tiny armored catfish from Peru that breathes air and blinks at you.
Loreto Tetra
FishHyphessobrycon loretoensis
A tiny Peruvian tetra with a vivid red tail that shines in a well-planted school.
Lubbock's Wrasse
FishCirrhilabrus lubbocki
A social, zooplankton-hunting wrasse that thrives in lively reef communities.
Lyretail Angelfish
FishGenicanthus caudovittatus
A rare peaceful angelfish with dramatic lyre-shaped tail fins and true sexual dimorphism.
Macculloch's Rainbowfish
FishMelanotaenia maccullochi
A compact, peaceful rainbowfish that rewards group keeping with vivid male displays.
maculated top shell
InvertTrochus maculatus
A hardworking grazer that keeps algae in check without drama.
Maeklong Chameleon Catfish
FishAcrochordonichthys septentrionalis
A skin-shedding hill stream catfish that keeps its tankmates on their toes.
Magnificent Anemone
InvertHeteractis magnifica
The classic clownfish host that can outlive your other reef inhabitants by decades.
Magnum Pleco
FishBaryancistrus chrysolomus
A boldly finned Xingu catfish that earns its territorial reputation with age.
Mahecola Barb
FishPuntius mahecola
A rarely traded Kerala barb best appreciated in a lively, same-species school.
Mailed Cory
FishCorydoras amandajanea
A rare armored catfish from the Negro River that occasionally breathes air
Mailfish
FishCleidopus gloriamaris
A living lantern: the fish that carries its own lights on its jaw.
Malabar Hatchet Chela
FishLaubuka fasciata
A peaceful Indian hill stream schooler that rewards keepers who buy in groups.
Malawi Squeaker
FishSynodontis njassae
Lake Malawi's only squeaker, built for cichlid tanks and rocky hideouts.
Malayan Loach
FishPangio semicincta
The fish sold as kuhli loach is almost certainly this one instead.
Malaya Shrimp
InvertCaridina babaulti
A hardy, color-shifting dwarf shrimp that surprises you with every molt.
Malay glass catfish
FishOmpok eugeneiatus
A shy, schooling catfish from Southeast Asian peat swamps and flooded forests.
Malaysian Trumpet Snail
InvertMelanoides tuberculata
The tireless substrate burrower that aerates your gravel while you sleep.
Mandarin Dragonet
FishSynchiropus splendidus
One of the most vividly colored fish on the reef, and one of the trickiest to keep.
Mandor
FishBetta mandor
A small, secretive Bornean mouthbrooder best kept in quiet, species-focused setups.
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
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 Lyretail
FishFundulopanchax marmoratus
A rare Cameroonian killifish with detailed marbled patterning and a preference for cool water.
Marble Shrimp
InvertSaron marmoratus
A boldly patterned reef shrimp that hides by day and roams by night.
Marine Nerite Snail
InvertVittina coromandeliana
A tough little grazer that keeps reef glass spotlessly clean.
Mario's cory
FishCorydoras pinheiroi
A rare Amazonian cory that can breathe air and live for decades.
Masked Angelfish
FishGenicanthus personatus
A rare Hawaiian endemic that's one of the most coveted angels in the hobby.