Species
Browsing 1,466 species. Use the filters below to narrow down.
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.
Masked Angelfish
FishGenicanthus personatus
A rare Hawaiian endemic that's one of the most coveted angels in the hobby.
Masked Puffer
FishArothron diadematus
A bold Red Sea puffer with a dramatic masked face and serious bite.
Massive Starlet Coral
CoralSiderastrea siderea
A boulder-forming reef coral that builds colonies wider than you are tall.
Mat Zoanthid
CoralZoanthus pulchellus
A hardy Western Atlantic zoanthid that forms colorful, spreading mats on the reef.
Maxima Clam
InvertTridacna maxima
A living jewel for the reef tank, with a lifespan that can outlast your mortgage.
Maze Coral
CoralMeandrina jacksoni
A rare Atlantic maze coral with a very limited Caribbean range.
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.
Mediterranean Fried Egg Jellyfish
InvertCotylorhiza tuberculata
The Mediterranean jellyfish that looks exactly like a fried egg.
Mediterranean Sea-fingers
CoralAlcyonium palmatum
A soft, finger-like Mediterranean coral that brings old-world reefs into your tank.
Mekong Puffer
FishTetraodon suvattii
A bottom-hugging Mekong puffer that buries itself in river mud.
Merten's Butterflyfish
FishChaetodon mertensii
A reef-associated butterflyfish that pairs up and patrols the deeper reef edges.
Merulina Coral
CoralBoninastrea boninensis
A rare Pacific brain coral with deeply twisted valleys and a compact form.
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.
Midas Blenny
FishEcsenius midas
A reef blenny that mimics anthias in color, movement, and social behavior.
Midget Chromis
FishChromis acares
A tiny schooling damsel that brings reef-like energy to modest-sized tanks.
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.
Mirror Basslet
FishPseudanthias pleurotaenia
A rare, large anthias that demands respect, and space, in the reef tank.
Molly Miller
FishScartella cristata
A tidepool blenny with a wild mohawk and an appetite for algae.
Monasteria Microporous Coral
CoralMontipora monasteriata
A tiered plating coral with subtle blue margins and a demanding personality.
Money Cowrie
InvertCypraea moneta
A living relic once traded as currency across cultures worldwide.
Montipora Cap
CoralMontipora capricornis
A plating coral that builds dramatic layered shelves in purple, blue, or brown.
Moon Coral
CoralAstreopora longisepta
A rare Kenyan plating coral that rewards only the most dedicated reefers.
Moon Jellyfish
InvertAurelia aurita
striking open-water drifter that needs its own specialized kreisel tank.
Moorish Idol
FishZanclus canescens
Iconic reef wanderer with a dramatic look that rarely thrives in captivity.
Mound Coral
CoralPorites lutea
A slow-growing mound coral that builds reef foundations over decades.
Mountainous Star Coral
CoralOrbicella annularis
A reef-building powerhouse that forms the backbone of Caribbean coral ecosystems.
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.
Multicolor Sea Star
InvertLinckia multifora
A reef sea star that comes in a kaleidoscope of mottled patterns, each one unique.