Species
Browsing 1,329 species. Use the filters below to narrow down.
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 Banded Barb
FishBarbus fasciolatus
A rarely exported African barb with bold vertical bars and crepuscular habits.
Blueberry Shrimp
InvertNeocaridina palmata
A boldly patterned dwarf shrimp that brings real color to planted nano tanks.
Blueberry Tetra
FishHyphessobrycon wada
A tiny tetra with a purple-blue body and vivid orange fins that deepen with age.
Blue Blubber Jellyfish
InvertCatostylus mosaicus
Australia's most common jellyfish, surprisingly manageable in a dedicated kreisel tank.
Blue Botia
FishYasuhikotakia modesta
A sociable Mekong loach with vivid fins and a complex social life.
Blue Chromis
FishChromis cyaneus
A cool-blue schooling fish that brings open-water energy to reef tanks.
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 Diamond Characin
FishAlestopetersius smykalai
A rare West African schooler with a bold diamond marking and fascinating male rivalry displays.
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 Flasher-wrasse
FishParacheilinus cyaneus
A reef-dwelling wrasse that sleeps wrapped in its own slime cocoon every night.
Blue-green Chromis
FishChromis viridis
A shimmering, peaceful schooling fish that brings reef lagoons to life in your tank.
Blue Hillstream Trout
FishOpsarius bernatziki
A fast, bold hillstream schooler with vivid blue flank bars and serious attitude.
Blue Leg Hermit Crab
InvertCalcinus elegans
Vivid blue legs and a big appetite for algae make this hermit a reef workhorse.
Blue Leg Hermit Crab
InvertClibanarius tricolor
A tiny, tireless reef cleaner with vivid blue legs and a big appetite for algae.
Blue Leg Poso Shrimp
InvertCaridina cf babaulti
A delicate little shrimp from an ancient Indonesian lake with vivid blue legs.
Blue Linckia Starfish
InvertLinckia laevigata
A vivid blue star from Indo-Pacific reefs, built for the patient reef keeper.
Blue-lined Rasbora
FishTrigonopoma gracile
A delicate blackwater rasbora with variable color forms from Borneo's forest streams.
Bluelined Wrasse
FishCirrhilabrus lineatus
A lavender-and-pink fairy wrasse that turns heads in any reef tank.
Blueline rasbora
FishRasbora einthovenii
A peaceful forest-stream rasbora with a charmingly crinkled lateral stripe.
Blue Neon Cichlid
FishParacyprichromis nigripinnis
A peaceful Tanganyikan schooler that hangs vertically against rock walls to spawn.
Blue Neon Goby
FishStiphodon atropurpureus
A thumbnail-sized stream goby that grazes biofilm and occasionally vanishes into the sand.
Blue Notho
FishNothobranchius patrizii
A tiny annual killifish built for life in pools that disappear.
blue puller
FishChromis caerulea
A shoaling reef chromis that brings calm, flowing movement to the mid-water column.
Blue Ribbon Tetra
FishHyphessobrycon melanostichos
A feisty little tetra that behaves best when kept in numbers
Blue-scaled Fairy Wrasse
FishCirrhilabrus cyanopleura
A roving reef wrasse that brings shimmering blue flanks to the open water column.
Bluespine Unicornfish
FishNaso unicornis
A true horn-nosed giant that demands a serious reef setup to thrive.
Bluespotted Jawfish
FishOpistognathus rosenblatti
A colonial burrower that tucks itself in every night like clockwork.
Bluespotted Lagoon Ray
FishTaeniura lymma
A reef ray that looks incredible but rarely thrives in captivity.
Blue-spotted Mudskipper
FishBoleophthalmus boddarti
A fish that walks on mud and breathes air at the tide's edge.