Species
Browsing 2,303 species. Use the filters below to narrow down.
Black Bellied Limia
FishLimia melanogaster
A rarely seen Caribbean livebearer with bold dark coloring and lively personality.
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.
Blackedged Blaasop
FishArothron immaculatus
A wide-ranging Indo-Pacific puffer with estuarine roots and a no-nonsense attitude.
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.
Black Lancer
FishBagrichthys hypselopterus
A deep-river Asian catfish with an impressively tall dorsal fin and bold personality.
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.
Blackline Rasbora
FishRasbora borapetensis
A peaceful schooling fish with a vivid red tail that really shines in a group.
Blacklip Butterflyfish
FishChaetodon kleinii
A wide-ranging butterflyfish that thrives deeper than most of its relatives.
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.
Black Moor Goldfish
FishCarassius auratus var. blackmoor
The velvety, telescope-eyed goldfish that turns heads in any pond or tank.
Black Neon Tetra
FishHyphessobrycon herbertaxelrodi
A boldly patterned schooling fish that thrives in a lively community setup.
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.