Aquariumpro
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RegionFreshwaterSaltwaterBrackish

The Americas

From the Amazon's blackwater basins to Caribbean reefs — the Americas hold the most popular freshwater biotopes and a wealth of Atlantic and Pacific saltwater life.

1,013 species

Blue Acara

Blue Acara

Fish

Andinoacara pulcher

A forgiving cichlid with real personality, perfect for community tanks with medium-sized fish.

Blueberry Tetra
✨AI

Blueberry Tetra

Fish

Hyphessobrycon wada

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

Blue Caribe

Blue Caribe

Fish

Serrasalmus altuvei

A rare, solitary piranha relative that's harder to identify than to keep.

Blue Cheek Dwarf Cichlid
✨AI

Blue Cheek Dwarf Cichlid

Fish

Apistogramma eunotus

A compact Peruvian dwarf cichlid with serious parenting instincts and big personality.

Blue Chromis

Blue Chromis

Fish

Chromis cyaneus

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 Crayfish

Blue Crayfish

Invert

Procambarus alleni

Florida's boldest crustacean, in an almost unreal shade of blue.

Blue Crust Coral

Blue Crust Coral

Coral

Porites branneri

A rare blue encrusting coral that forms textured plates with nodular ridges.

Blue Emperor Tetra

Blue Emperor Tetra

Fish

Inpaichthys kerri

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

Blue-eye Cichlid

Blue-eye Cichlid

Fish

Cryptoheros spilurus

A compact Central American cichlid with fierce pair bonds and big personality.

Blue-eyed Catfish
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Blue-eyed Catfish

Fish

Amblydoras nauticus

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

Blue-eye Plec
✨AI

Blue-eye Plec

Fish

Panaque suttonorum

A wood-rasping Venezuelan plec with vivid blue eyes that glow in the right light.

Blue Leg Hermit Crab

Blue Leg Hermit Crab

Invert

Clibanarius tricolor

A tiny, tireless reef cleaner with vivid blue legs and a big appetite for algae.

Bluemouth Cichlid

Bluemouth Cichlid

Fish

Amphilophus nourissati

A bold Central American cichlid from ancient Mayan river country, built for character.

Blue Panda Cichlid

Blue Panda Cichlid

Fish

Apistogramma panduro

A tiny Peruvian cichlid with a bold personality and cave-spawning habits.

Blue Rainbow

Blue Rainbow

Fish

Scarus guacamaia

The largest Atlantic parrotfish, built for reefs but almost impossible to keep captive.

Blue Ribbon Tetra

Blue Ribbon Tetra

Fish

Hyphessobrycon melanostichos

A feisty little tetra that behaves best when kept in numbers

Bluestripe Pipefish

Bluestripe Pipefish

Fish

Doryrhamphus excisus

A secretive reef pipefish that pairs for life and fits in tight crevices.

Blue Tang

Blue Tang

Fish

Acanthurus coeruleus

A bold Atlantic surgeon fish known for cleaning sea turtles in the wild.

Blue Tetra

Blue Tetra

Fish

Boehlkea fredcochui

A petite Amazonian schooler that thrives when kept in numbers.

Blue Tetra

Blue Tetra

Fish

Mimagoniates microlepis

A rare coastal-stream tetra with an unusual internal fertilization strategy.

Blue Tilapia
✨AI

Blue Tilapia

Fish

Oreochromis aureus

A cold-tolerant tilapia with surprising hardiness and a calm, active personality.

Blunthead Triggerfish

Blunthead Triggerfish

Fish

Pseudobalistes naufragium

A giant, reef-wrecking curious personality from the Eastern Pacific.

Blushing Star Coral

Blushing Star Coral

Coral

Stephanocoenia intersepta

A demanding Atlantic reef-builder with a subtle rosy flush and tight corallite patterning.

Boesemani Tetra
✨AI

Boesemani Tetra

Fish

Hemigrammus boesemani

A rarely seen French Guiana tetra that rewards patient hunters with peaceful charm.

Boeseman's Cory

Boeseman's Cory

Fish

Corydoras boesemani

A tiny armored catfish from Suriname that breathes air and stays rare in the hobby.

Bolivia Cichlid

Bolivia Cichlid

Fish

Cichlasoma boliviense

A compact South American cichlid that punches above its weight in personality.

Bolivian Cory

Bolivian Cory

Fish

Corydoras bilineatus

A long-lived Bolivian cory that breathes air and blinks at you.

Bolivian Ram

Bolivian Ram

Fish

Mikrogeophagus altispinosus

The hardier, more forgiving cousin of the popular ram cichlid.

Bolivian thorny catfish

Bolivian thorny catfish

Fish

Trachydoras steindachneri

A seldom-seen Amazonian thorny catfish that plays well with smaller tankmates.

Bolivian Whiptail Catfish
✨AI

Bolivian Whiptail Catfish

Fish

Hemiloricaria beni

A petite Bolivian whiptail catfish with a surprising ability to breathe air.

Bottle-brush Coral

Bottle-brush Coral

Coral

Muriceopsis flavida

A bushy Western Atlantic sea plume that's surprisingly forgiving for new reef keepers.

Boulder Brain Coral

Boulder Brain Coral

Coral

Colpophyllia natans

A classic Atlantic brain coral that grows into impressive dome-shaped colonies over time.

Boulder Star Coral

Boulder Star Coral

Coral

Orbicella faveolata

A reef-building heavyweight that has shaped Caribbean reefs for millennia.

Brain Coral

Brain Coral

Coral

Colpophyllia breviserialis

A rare Atlantic brain coral with accessible care needs and genuine reef credentials.

Brain Coral

Brain Coral

Coral

Diploria labyrinthiformis

A classic Caribbean brain coral with bold, maze-like ridges built for the long haul.