Species
Browsing 891 species. Use the filters below to narrow down.
Bar-tail Moray
FishGymnothorax zonipectis
A boldly patterned Indo-Pacific moray with a distinctive barred tail fin.
Bartlett's Anthias
FishPseudanthias bartlettorum
A sociable reef fish that thrives in groups and brings constant mid-water activity.
Beaked coralfish
FishChelmon mulleri
A reef butterflyfish that prefers muddy estuaries over pristine coral gardens.
Bearded Soapfish
FishPogonoperca punctata
A secretive reef ambush predator with a toxic secret beneath its skin.
Bearded Wormgoby
FishTaenioides cirratus
A snake-like burrowing goby with whiskery barbels and surprising air-breathing ability.
Beardless Barb
FishCyclocheilichthys apogon
A schooling barb built for large, lively communities. No barbels, plenty of personality.
Bengal Danio
FishDevario devario
A bold, wide-ranging danio that rewards keepers who give it room to school properly.
Bennett's Pufferfish
FishCanthigaster bennetti
A pint-sized puffer with big personality and a surprisingly calm disposition.
Betta
FishBetta splendens
The world's most recognizable fighting fish, now bred in countless colors and fin shapes.
Biara
FishRhaphiodon vulpinus
A sleek South American predator that outgrows almost every home aquarium.
Bichir
FishPolypterus bichir bichir
A living fossil that breathes air and hunts by smell alone.
Bicolor Dottyback
FishPseudochromis paccagnella
Tiny, colorful, and surprisingly fierce. A pocket-sized bully for the reef tank.
Big-eyed Cachorro
FishAcestrorhynchus falcirostris
A riverine ambush predator that plays surprisingly well with tankmates it can't eat.
Bigeye Xenotilapia
FishXenotilapia sima
A sand-sifting Tanganyikan schooler that rarely turns up in the hobby
Bigmouth
FishApistogramma norberti
A pocket-sized Peruvian cichlid with a big personality and cave-spawning habits.
Black Arowana
FishOsteoglossum ferreirai
A surface-cruising river predator that leaps for prey in the wild.
Blackbacked Butterflyfish
FishChaetodon melannotus
A boldly patterned reef butterfly with a strong preference for live coral.
Blackband Copella
FishCopella callolepis
A tiny Amazonian schooler that rewards patience with vivid courtship displays.
Blackbanded Pyrrhulina
FishCopella nigrofasciata
A dapper little Amazonian splasher with devoted fathering instincts.
Black-blotch Triggerfish
FishRhinecanthus verrucosus
A Picasso-patterned triggerfish that prefers retreat over confrontation.
Black Boxfish
FishOstracion meleagris
A living mosaic of spots with a secret chemical defense you need to know about.
Blackcap Basslet
FishGramma melacara
A deep-reef beauty that swims upside-down along underwater cliff faces.
Black Dwarf Betta
FishBetta persephone
A velvety black pygmy betta from some of the world's most acidic swamps.
Blackedged Blaasop
FishArothron immaculatus
A wide-ranging Indo-Pacific puffer with estuarine roots and a no-nonsense attitude.
Blackfin Coral Goby
FishParagobiodon lacunicolus
A tiny goby that spends its entire life tucked inside a single coral colony.
Black Ghost
FishApteronotus albifrons
A velvety black, ribbon-finned predator that navigates by its own electric field.
Black-headed Leatherjacket
FishPervagor melanocephalus
A secretive reef filefish that pairs up and lurks among coral-rich ledges.
Black Kuhli Loach
FishPangio oblonga
A slender, uniformly dark loach that loves company and hides in plain sight.
Black-lined Loach
FishAmbastaia nigrolineata
A rare, sociable loach with bold racing stripes and fascinating group behaviors.
Black-lipped Panchax
FishEpiplatys dageti dageti
A hardy, surface-loving killifish that's a perfect gateway into egg-scattering species.
Black Lizard Loach
FishBalitoropsis zollingeri
A flat-bodied stream crawler that hops and clings across rocks like no other loach.
Blacknose Butterfly Barb
FishBarbus candens
A tiny Congo rarity that rewards patient keepers with delicate charm.
Black Ocellatus
FishLamprologus speciosus
A pint-sized shell-brooding cichlid from Lake Tanganyika with outsized attitude.
Blackseam Cichlid
FishApistogramma hongsloi
A compact Colombian dwarf cichlid that pairs up and parents together.
Black Snakehead
FishChanna melasoma
A compact, nocturnal predator built for dark, acidic forest streams.
Blackspot Pigmy Wrasse
FishWetmorella nigropinnata
A tiny, secretive reef wrasse that disappears into caves the moment you look away.