☮Peaceful community
Peaceful species that coexist with a wide range of tankmates. The foundation of mixed-species community tanks.
525 species
Black Catfish
FishTrachycorystes trachycorystes
A hefty South American catfish with unusual reproductive biology and serious presence.
Black Dwarf Betta
FishBetta persephone
A velvety black pygmy betta from some of the world's most acidic swamps.
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.
Black Spotted Catfish
FishAuchenoglanis biscutatus
A giant, gentle African catfish that cruises the bottom with calm authority.
Blacktop Catfish
FishCorydoras acutus
A sharp-snouted little armored catfish with a bold black dorsal spot.
Black-winged Hatchetfish
FishCarnegiella marthae
A tiny, deep-chested surface dweller that will absolutely find any gap in your lid.
Bleher's Rainbowfish
FishChilatherina bleheri
A brilliantly colored rainbowfish from one remote Indonesian lake, worth every bit of effort.
Bloodfin Tetra
FishAphyocharax anisitsi
A hardy, long-lived tetra with vivid red fins and surprising cold tolerance.
Blue Assessor
FishAssessor macneilli
A cave-dwelling reef basslet that swims upside-down like it owns the place.
Blueback Blue-eye
FishPseudomugil cyanodorsalis
A tiny blue-backed rainbowfish relative from Australia's brackish mangrove creeks.
Blue Chromis
FishChromis cyanea
A cool-blue schooling fish that brings open-water energy to reef tanks.
Blue Cory
FishCorydoras nattereri
A long-lived, sociable bottom-dweller that breathes air and blinks at you.
Blue danio
FishDanio kerri
A powder-blue schooling gem from the Malay Peninsula that's rarely seen but easy to keep.
Blue Emperor Tetra
FishInpaichthys kerri
Tiny tetra with big color rivalry. Males glow brightest when competing for attention.
Blue-eyed Catfish
FishAmblydoras nauticus
A hardy little catfish that talks in the dark and rarely shows its face by day.
Blue-lined Rasbora
FishTrigonopoma gracile
A delicate blackwater rasbora with variable color forms from Borneo's forest streams.
Blueline rasbora
FishRasbora einthovenii
A peaceful forest-stream rasbora with a charmingly crinkled lateral stripe.
Blue-lip Anemonefish
FishAmphiprion latezonatus
A rare Australian clownfish with bold white bands and a surprisingly deep blue lip.
Blue Notho
FishNothobranchius patrizii
A tiny annual killifish built for life in pools that disappear.
Bluespotted Jawfish
FishOpistognathus rosenblatti
A colonial burrower that tucks itself in every night like clockwork.
Blue-spotted Mudskipper
FishBoleophthalmus boddarti
A fish that walks on mud and breathes air at the tide's edge.
Blue Tetra
FishBoehlkea fredcochui
A petite Amazonian schooler that thrives when kept in numbers.
Blue Tetra
FishMimagoniates microlepis
A rare coastal-stream tetra with an unusual internal fertilization strategy.
Boesemani Tetra
FishHemigrammus boesemani
A rarely seen French Guiana tetra that rewards patient hunters with peaceful charm.
Boeseman's Cory
FishCorydoras boesemani
A tiny armored catfish from Suriname that breathes air and stays rare in the hobby.
Boeseman's Rainbowfish
FishMelanotaenia boesemani
Two fish in one body: bold orange rear, cool blue-grey front.
Boldingh's Ghostgoby
FishPleurosicya boldinghi
A tiny, transparent goby that spends its whole life clinging to soft corals.
Bolivian Cory
FishCorydoras bilineatus
A long-lived Bolivian cory that breathes air and blinks at you.
Bolivian thorny catfish
FishTrachydoras steindachneri
A seldom-seen Amazonian thorny catfish that plays well with smaller tankmates.
Boomerang Barb
FishDesmopuntius foerschi
A tiny blackwater barb with bold vertical bars and a lively schooling personality.