Species
Browsing 366 species. Use the filters below to narrow down.
Marbled Climbing Perch
FishCtenopoma weeksii
A cryptic Congo predator that vanishes into leaf litter before your eyes.
Marine Betta
FishCalloplesiops altivelis
A cave-dwelling mimic that fools predators by impersonating a moray eel.
Masked Angelfish
FishGenicanthus personatus
A rare Hawaiian endemic that's one of the most coveted angels in the hobby.
Maya Tetra
FishHyphessobrycon compressus
The founding species of its entire genus, rarely seen in the hobby.
Mekong Croaking Gourami
FishTrichopsis schalleri
The tiny gourami that actually produces sounds to resolve conflicts and court mates.
Merten's Butterflyfish
FishChaetodon mertensii
A reef-associated butterflyfish that pairs up and patrols the deeper reef edges.
Meta Tetra
FishHyphessobrycon metae
A tricky-to-identify Orinoco tetra that rewards patient, well-planned community tanks.
Mirror Basslet
FishPseudanthias pleurotaenia
A rare, large anthias that demands respect, and space, in the reef tank.
Montecristo Cichlid
FishVieja heterospila
A robust Central American cichlid from some of Mexico's most storied river systems.
Moonlight Gourami
FishTrichogaster microlepis
A silver-scaled Southeast Asian gourami with a gentle nature and labyrinth breathing.
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.
Multicolour Dottyback
FishOgilbyina novaehollandiae
A vivid reef dweller from the Great Barrier Reef with a bold dual-tone look.
Mustard Tang
FishAcanthurus guttatus
A surge-zone schooler that thrives where the waves crash hardest.
Mystery Wrasse
FishPseudocheilinus ocellatus
A secretive reef wrasse with bold colors and a talent for disappearing.
Naked Characin
FishGymnocharacinus bergi
A scaleless South American oddity from one of the world's most isolated streams.
Narrow-bellied Seahorse
FishHippocampus angustus
A spiny Western Australian seahorse with a distinctively slender profile.
Neon Blue Rasbora
FishSundadanio axelrodi
Tiny blackwater gem that rewards patient keepers with dazzling group behavior.
Neon Dwarf Rainbowfish
FishMelanotaenia praecox
Tiny rainbowfish that turns up the color when kept in a proper shoal.
Obliquidens Hap
FishHaplochromis obliquidens
A scrappy Victorian cichlid with a taste for algae and a bold personality.
Ocellated Labyrinth Fish
FishCtenopoma muriei
A compact African labyrinth fish that punches above its weight in personality.
Ocellated Puffer
FishTakifugu ocellatus
A surprisingly peaceful puffer with a wild lifecycle from river to reef.
Ocellated pufferfish
FishLeiodon cutcutia
A pufferfsh from Asian rivers and canals with a surprisingly long lifespan.
Orange Ctenopoma
FishMicroctenopoma ansorgii
A jewel-toned African labyrinth fish that rewards patient, experienced keepers.
Orange-fin Barb
FishBarbus eutaenia
A sleek African barb from fast, rocky streams that rewards patient keepers.
Orchid Dottyback
FishPseudochromis fridmani
A bold little Red Sea endemic that punches well above its weight.
Orinoco Tetra
FishHemigrammus barrigonae
A rare Orinoco tetra that rewards patient keepers willing to seek it out.
Ornate Paradisefish
FishMalpulutta kretseri
A rare Sri Lankan gem that deserves a species tank all to itself.
Ornate rainbowfish
FishRhadinocentrus ornatus
A tiny Australian rainbowfish from wild, tea-stained wallum streams.
Oscar
FishAstronotus ocellatus
The cichlid that recognizes your face and rearranges its own tank.
Pacific Double-saddle Butterflyfish
FishChaetodon ulietensis
A boldly patterned butterflyfish that pairs for life in the wild.
Pacific Seahorse
FishHippocampus procerus
A tall-crowned Pacific seahorse that rewards patient, attentive keepers.
Panda Barb
FishHaludaria melanampyx
A lively hill-stream barb from India's Western Ghats with a two-tone shimmer.
Panda Uaru
FishUaru fernandezyepezi
A rare Orinoco cichlid that few hobbyists ever get to keep.
Patrick's Acara
FishAequidens patricki
A rarely traded Peruvian cichlid with a feisty personality and serious collector appeal.
Peaceful Betta
FishBetta imbellis
The gentler betta. Males can sometimes share a tank if given enough cover.