Species
Browsing 2,796 species. Use the filters below to narrow down.
Bighead Pupfish
FishCyprinodon pachycephalus
A rare Mexican pupfish with a notably broad head and a challenging side.
Bigmouth
FishApistogramma norberti
A pocket-sized Peruvian cichlid with a big personality and cave-spawning habits.
Big-nose Unicornfish
FishNaso vlamingii
A color-shifting open-water unicornfish that needs serious space to roam.
Birdsnest Coral
CoralPocillopora tuahiniensis
A newly described Pacific birdsnest coral with branching architecture straight from French Polynesia.
Birdsnest Coral
CoralSeriatopora caliendrum
Delicate branching coral that rewards patient reefers with a wild, bushy silhouette.
Black Angel
FishPomacanthus arcuatus
A large, sociable Atlantic angel that juveniles moonlight as reef cleaning stations.
Black-axil Chromis
FishChromis atripectoralis
A schooling reef damsel that actually plays nice with its tankmates.
Blackbacked Butterflyfish
FishChaetodon melannotus
A boldly patterned reef butterfly with a strong preference for live coral.
Black-banded Triggerfish
FishRhinecanthus rectangulus
A bold reef rearanger that treats your aquascape as a personal renovation project.
Blackbarred Reefgoby
FishPriolepis nocturna
A tiny crevice-dweller that disappears into the reef and rarely comes out.
Blackbelt Cichlid
FishVieja maculicauda
A bold, brawny Central American cichlid with a namesake black band and real attitude.
Black-belt hogfish
FishBodianus mesothorax
A boldly two-toned wrasse with a sharp contrast that practically splits it in half.
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 Catfish
FishTrachycorystes trachycorystes
A hefty South American catfish with unusual reproductive biology and serious presence.
Blackchin Tilapia
FishSarotherodon melanotheron melanotheron
A tough West African cichlid where dad handles all the childcare duties.
Black Combtooth Blenny
FishEcsenius namiyei
A sleek, dark blenny that grazes algae from reef rockwork with quiet confidence.
Black Damsel
FishNeoglyphidodon melas
A boldly colored damsel with a feisty attitude that only grows with age.
Black Darter Tetra
FishPoecilocharax weitzmani
A cave-guarding micro-predator from blackwater South America with serious attitude.
Black Durgon
FishMelichthys niger
A calm, reef-going triggerfish that's actually safe for community tanks.
Black Dwarf Betta
FishBetta persephone
A velvety black pygmy betta from some of the world's most acidic swamps.
Black-ear Pacu
FishMyleus schomburgkii
A disc-shaped, plant-munching pacu with a bold black flank bar and surprisingly peaceful nature.
Blackear Wrasse
FishHalichoeres poeyi
A bold Atlantic wrasse with a sharp temper for its own kind.
Black-edged Moray
InvertGymnothorax melanopterus
A moray with bold fin markings from the cool northern seas.
Black Fin Barb
FishPethia nigripinnis
A cool-water gem from India's Western Ghats, rarely seen outside specialist collections.
Blackfin Coral Goby
FishParagobiodon lacunicolus
A tiny goby that spends its entire life tucked inside a single coral colony.
Black-finned Triggerfish
FishMelichthys indicus
A surprisingly mellow triggerfish that goes easy on its tankmates.
Black Ghost
FishApteronotus albifrons
A velvety black, ribbon-finned predator that navigates by its own electric field.
Blackgullet Cichlid
FishThorichthys pasionis
A lesser-known Central American cichlid with bold personality and a distinctive dark throat.
Black-headed Leatherjacket
FishPervagor melanocephalus
A secretive reef filefish that pairs up and lurks among coral-rich ledges.
Black Imbellis
FishBetta siamorientalis
A tiny bubble-nesting betta with a blackish body and vivid red fin details.
Black Kuhli Loach
FishPangio oblonga
A slender, uniformly dark loach that loves company and hides in plain sight.
Blackline Apisto
FishApistogramma gibbiceps
A cave-spawning dwarf cichlid from the blackwater rivers of the Amazon basin.
Black-lined Loach
FishAmbastaia nigrolineata
A rare, sociable loach with bold racing stripes and fascinating group behaviors.
Blackline Penguinfish
FishThayeria boehlkei
The tetra that swims nose-up and wears a bold racing stripe to its tail.