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Species

Browsing 1,126 species. Use the filters below to narrow down.

Black Moor Goldfish

Black Moor Goldfish

Fish

Carassius auratus var. blackmoor

The velvety, telescope-eyed goldfish that turns heads in any pond or tank.

Black Neon Tetra

Black Neon Tetra

Fish

Hyphessobrycon herbertaxelrodi

A boldly patterned schooling fish that thrives in a lively community setup.

Black phantom tetra

Black phantom tetra

Fish

Hyphessobrycon megalopterus

Ghost-grey tetras with bold black fins that come alive during male rivalry displays.

Blackspot Pigmy Wrasse

Blackspot Pigmy Wrasse

Fish

Wetmorella nigropinnata

A tiny, secretive reef wrasse that disappears into caves the moment you look away.

Black-spotted Boxfish

Black-spotted Boxfish

Fish

Ostracion cubicus

Adorable cube-shaped reef fish that hides a dangerous chemical defense.

Black Spotted Catfish

Black Spotted Catfish

Fish

Auchenoglanis biscutatus

A giant, gentle African catfish that cruises the bottom with calm authority.

Black-spotted Corydoras

Black-spotted Corydoras

Fish

Corydoras melanistius

A sociable little armored catfish that thrives in groups and lives surprisingly long.

Blackspotted Toothcarp

Blackspotted Toothcarp

Fish

Phallichthys tico

A tiny, peaceful livebearer from Costa Rica's murky highland streams.

Blackstreak Surgeonfish

Blackstreak Surgeonfish

Fish

Acanthurus nigricauda

A wide-ranging Indo-Pacific grazer that bucks the typical surgeonfish habitat

Blackstripe Cardinalfish

Blackstripe Cardinalfish

Fish

Apogon nigrofasciatus

A secretive reef-dweller that comes alive after dark to hunt the rubble.

Blacktop Catfish

Blacktop Catfish

Fish

Corydoras acutus

A sharp-snouted little armored catfish with a bold black dorsal spot.

Black Venezuelan Corydoras (Tank-Bred)

Black Venezuelan Corydoras (Tank-Bred)

Fish

Corydoras schultzei

A rare, captive-bred cory with deep black coloration and charming schooling behavior.

Black-winged Hatchetfish

Black-winged Hatchetfish

Fish

Carnegiella marthae

A tiny, deep-chested surface dweller that will absolutely find any gap in your lid.

Bleeding Heart Tetra

Bleeding Heart Tetra

Fish

Hyphessobrycon pyrrhonotus

The rarest bleeding heart tetra, with a vivid red wedge only it can claim.

Bleeding Heart Tetra

Bleeding Heart Tetra

Fish

Hyphessobrycon socolofi

The bleeding heart tetra rewards patient keepers with spectacular male rivalry displays.

Bleher's Rainbowfish

Bleher's Rainbowfish

Fish

Chilatherina bleheri

A brilliantly colored rainbowfish from one remote Indonesian lake, worth every bit of effort.

Bloodfin Tetra

Bloodfin Tetra

Fish

Aphyocharax anisitsi

A hardy, long-lived tetra with vivid red fins and surprising cold tolerance.

Blue Assessor

Blue Assessor

Fish

Assessor macneilli

A cave-dwelling reef basslet that swims upside-down like it owns the place.

Blueback Blue-eye

Blueback Blue-eye

Fish

Pseudomugil cyanodorsalis

A tiny blue-backed rainbowfish relative from Australia's brackish mangrove creeks.

Blue Banded Barb

Blue Banded Barb

Fish

Barbus fasciolatus

A rarely exported African barb with bold vertical bars and crepuscular habits.

Blueberry Tetra

Blueberry Tetra

Fish

Hyphessobrycon wada

A tiny tetra with a purple-blue body and vivid orange fins that deepen with age.

Blue Botia

Blue Botia

Fish

Yasuhikotakia modesta

A sociable Mekong loach with vivid fins and a complex social life.

Blue Chromis

Blue Chromis

Fish

Chromis cyaneus

A cool-blue schooling fish that brings open-water energy to reef tanks.

Blue Chromis

Blue Chromis

Fish

Chromis cyanea

A cool-blue schooling fish that brings open-water energy to reef tanks.

Blue Cory

Blue Cory

Fish

Corydoras nattereri

A long-lived, sociable bottom-dweller that breathes air and blinks at you.

Blue danio

Blue danio

Fish

Danio kerri

A powder-blue schooling gem from the Malay Peninsula that's rarely seen but easy to keep.

Blue Diamond Characin

Blue Diamond Characin

Fish

Alestopetersius smykalai

A rare West African schooler with a bold diamond marking and fascinating male rivalry displays.

Blue Emperor Tetra

Blue Emperor Tetra

Fish

Inpaichthys kerri

Tiny tetra with big color rivalry. Males glow brightest when competing for attention.

Blue-eyed Catfish

Blue-eyed Catfish

Fish

Amblydoras nauticus

A hardy little catfish that talks in the dark and rarely shows its face by day.

Blue Flasher-wrasse

Blue Flasher-wrasse

Fish

Paracheilinus cyaneus

A reef-dwelling wrasse that sleeps wrapped in its own slime cocoon every night.

Blue-green Chromis

Blue-green Chromis

Fish

Chromis viridis

A shimmering, peaceful schooling fish that brings reef lagoons to life in your tank.

Blue Hillstream Trout

Blue Hillstream Trout

Fish

Opsarius bernatziki

A fast, bold hillstream schooler with vivid blue flank bars and serious attitude.

Blue-lined Rasbora

Blue-lined Rasbora

Fish

Trigonopoma gracile

A delicate blackwater rasbora with variable color forms from Borneo's forest streams.

Bluelined Wrasse

Bluelined Wrasse

Fish

Cirrhilabrus lineatus

A lavender-and-pink fairy wrasse that turns heads in any reef tank.

Blueline rasbora

Blueline rasbora

Fish

Rasbora einthovenii

A peaceful forest-stream rasbora with a charmingly crinkled lateral stripe.

Blue Neon Cichlid

Blue Neon Cichlid

Fish

Paracyprichromis nigripinnis

A peaceful Tanganyikan schooler that hangs vertically against rock walls to spawn.