Species
Browsing 1,801 species. Use the filters below to narrow down.
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-eye Cichlid
FishCryptoheros spilurus
A compact Central American cichlid with fierce pair bonds and big personality.
Blue-eyed Catfish
FishAmblydoras nauticus
A hardy little catfish that talks in the dark and rarely shows its face by day.
Blue-eyed Tropheus
FishTropheus brichardi
A Lake Tanganyika cichlid that rewards patience with fascinating colony dynamics.
Blue-eye Plec
FishPanaque suttonorum
A wood-rasping Venezuelan plec with vivid blue eyes that glow in the right light.
Bluefin Notho
FishNothobranchius rachovii
A fish that lives fast, dies young, and leaves spectacular eggs behind.
Bluegray Mbuna
FishMelanochromis johanni
A Lake Malawi rock-dweller with bold colors and bolder attitude.
Blue Hillstream Trout
FishOpsarius bernatziki
A fast, bold hillstream schooler with vivid blue flank bars and serious attitude.
Blue Killi
FishFundulopanchax filamentosus
Ornate West African killifish with flowing fins and a taste for live food.
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
A jewel-toned killifish that rewards patient keepers with dazzling color and easy spawning.
Blue Lyretail
FishFundulopanchax gardneri gardneri
A hardy, colorful killifish that's genuinely beginner-friendly and easy to breed.
Blue Lyretail Killifish
FishAphyosemion gardneri
A brilliantly patterned West African killifish that rewards patient keepers with dazzling color.
Blue Mbuna
FishLabeotropheus fuelleborni
A rock-grazing Lake Malawi cichlid with a bold personality and remarkable color diversity.
Bluemouth Cichlid
FishAmphilophus nourissati
A bold Central American cichlid from ancient Mayan river country, built for character.
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 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 Panda Cichlid
FishApistogramma panduro
A tiny Peruvian cichlid with a bold personality and cave-spawning habits.
Blue Perch
FishBadis badis
A color-changing micro-predator that hides, watches, and ambushes with surprising intensity.
Blue Ribbon Tetra
FishHyphessobrycon melanostichos
A feisty little tetra that behaves best when kept in numbers
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.
Blue Tilapia
FishOreochromis aureus
A cold-tolerant tilapia with surprising hardiness and a calm, active personality.
Blunthead Cichlid
FishTropheus moorii
A Lake Tanganyika specialist that rewards experienced keepers with endlessly fascinating colony dynamics.
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.
Boga Labeo
FishLabeo boga
A large, shark-like cyprinid that outgrows most home aquariums.
Bolivia Cichlid
FishCichlasoma boliviense
A compact South American cichlid that punches above its weight in personality.
Bolivian Cory
FishCorydoras bilineatus
A long-lived Bolivian cory that breathes air and blinks at you.
Bolivian Ram
FishMikrogeophagus altispinosus
The hardier, more forgiving cousin of the popular ram cichlid.