Species
Browsing 807 species. Use the filters below to narrow down.
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 Cheek Dwarf Cichlid
FishApistogramma eunotus
A compact Peruvian dwarf cichlid with serious parenting instincts and big personality.
Blue Chromis
FishChromis cyaneus
A cool-blue schooling fish that brings open-water energy to reef tanks.
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.
Bluefin Notho
FishNothobranchius rachovii
A fish that lives fast, dies young, and leaves spectacular eggs behind.
Blue Flasher-wrasse
FishParacheilinus cyaneus
A reef-dwelling wrasse that sleeps wrapped in its own slime cocoon every night.
Bluehead Wrasse
FishThalassoma amblycephalum
A reef-dwelling wrasse with bold color phases and a peaceful community nature.
Blue Jaw Triggerfish
FishXanthichthys auromarginatus
A long-lived, manageable trigger that actually leaves your rockwork alone.
Blue Killi
FishFundulopanchax filamentosus
Ornate West African killifish with flowing fins and a taste for live food.
Blue Kumu
FishParupeneus cyclostomus
A reef-flat hunter that uses whisker-like barbels to sniff out hidden prey.
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 Lyretail
FishFundulopanchax gardneri gardneri
A hardy, colorful killifish that's genuinely beginner-friendly and easy to breed.
Blue Neon Cichlid
FishParacyprichromis nigripinnis
A peaceful Tanganyikan schooler that hangs vertically against rock walls to spawn.
Blue Neon Sheatfish
FishKryptopterus apogon
A massive river predator sometimes sold to unsuspecting buyers as a cute juvenile.
Blue Notho
FishNothobranchius patrizii
A tiny annual killifish built for life in pools that disappear.
Blue Perch
FishBadis badis
A color-changing micro-predator that hides, watches, and ambushes with surprising intensity.
Blue-scaled Fairy Wrasse
FishCirrhilabrus cyanopleura
A roving reef wrasse that brings shimmering blue flanks to the open water column.
Bluespot Rockcod
FishCephalopholis miniata
A brilliantly spotted reef predator that commands attention in any large display tank.
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.
Bluestripe Pipefish
FishDoryrhamphus excisus
A secretive reef pipefish that pairs for life and fits in tight crevices.
Blue-throat Trigger
FishXanthichthys mento
A rare triggerfish that schools in the wild and stays manageable in a reef setup.
Blue Velvet Headshield Slug
InvertChelidonura varians
A velvety reef predator that hunts flatworms with surprising efficiency.
Boldingh's Ghostgoby
FishPleurosicya boldinghi
A tiny, transparent goby that spends its whole life clinging to soft corals.
Bolivian Ram
FishMikrogeophagus altispinosus
The hardier, more forgiving cousin of the popular ram cichlid.
Borneo Loach
FishPangio shelfordii
A patterned eel-loach from Borneo's blackwater forests, with surprising personality for its size.
Brazilian Seahorse
FishHippocampus reidi
A slow-moving, sociable seahorse with a famously elongated snout built for precision hunting.
Brichardi Cichlid
FishChalinochromis brichardi
A bold little rubble-dweller from Tanganyika's rocky shoreline.
Bridled Monocle Bream
FishScolopsis bilineata
A reef carnivore whose juveniles pull off a clever blenny disguise.
Brown Julie
FishJulidochromis dickfeldi
A rock-hugging Tanganyikan cichlid that pairs for life and guards its cave fiercely.
Brown Pencilfish
FishNannostomus beckfordi
A hardy little pencilfish that actually forgives beginner mistakes.
Brown's Betta
FishBetta brownorum
A jewel of the peat swamps, with a glowing green flank spot unlike any other Betta.