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
Sub-regions
Schwartz's Cory
FishCorydoras schwartzi
A long-lived, armored bottom dweller that genuinely thrives in good company.
Scroll Coral
CoralAgaricia undata
A low-light Caribbean plate coral with elegant scrolling, layered growth.
Sea Fan
CoralEugorgia rubens
A vivid Eastern Pacific sea fan built for strong currents and deeper reef walls.
Sea Fan
CoralLeptogorgia alba
A branching Eastern Pacific sea fan that rewards patient, flow-focused reef setups.
Sea Fan
CoralLeptogorgia bayeri
A slender, branching sea fan from Southern African waters demanding strong flow.
Sea Fan
CoralLeptogorgia exigua
A delicate Eastern Pacific sea fan for reef tanks with serious flow.
Sea Fan
CoralLeptogorgia pumila
A compact Eastern Pacific sea fan that rewards patient, detail-oriented reef keepers.
Sea Fan
CoralPacifigorgia adamsii
A deep-water Pacific sea fan that brings dramatic structure to the reef tank.
Sea Fan
CoralPacifigorgia irene
A deep-color Eastern Pacific sea fan for high-flow reef displays.
Sea Plume
CoralAntillogorgia elisabethae
A tall, feathery gorgonian that brings vertical drama to Caribbean reef displays.
Sea Whip
CoralLeptogorgia punicea
A branching, flame-colored gorgonian that brings reef structure to life.
Sea Whip
CoralLeptogorgia setacea
A branching sea whip from North Atlantic waters that demands serious flow.
Sergeant Major
FishAbudefduf saxatilis
Bold reef dweller with a notorious attitude that grows with age.
Serpae Tetra
FishHyphessobrycon eques
Fiery red schooler that turns fin-nipper when kept in too-small groups.
Seuss' cory
FishCorydoras seussi
A long-lived Bolivian cory that breathes air and rewards patient keepers.
Severum
FishHeros efasciatus
A gentle giant of the Amazon that plays surprisingly well with others.
Severum
FishHeros severus
A large, easygoing cichlid with personality to spare and a surprisingly gentle nature.
Sheep Pacu
FishAcnodon normani
A compact pacu with tiger stripes and a bad habit of snacking on scales.
Sheepshead Pupfish
FishCyprinodon variegatus
A tough little pupfish that thrives where most fish would struggle to survive.
Shelf-knob Sea Rod
CoralEunicea succinea
A branching Caribbean sea rod that brings natural reef structure to the aquarium.
Shining Pencilfish
FishNannostomus nitidus
A rarely-seen pencilfish with a glittering lateral stripe and fascinating nocturnal color shifts.
Shortfin Molly
FishPoecilia mexicana
The wild ancestor of the molly we all know, built for tough conditions.
Short-lined Pyrrhulina
FishPyrrhulina brevis
A compact Amazonian predator with surprising personality for its size.
Shortnose Gar
FishLepisosteus oculatus
A living fossil built for ambush, not the average home aquarium.
Shovel-nosed Catfish
FishSorubim lima
A head-down ambush predator that swims like a falling leaf among the roots.
Shy Cory
FishCorydoras gracilis
A tiny, shy cory with a bold arched stripe and a surprising air-breathing trick.
Silver Arawana
FishOsteoglossum bicirrhosum
An ancient, leaping predator that quickly outgrows almost every home aquarium.
Silver Croaker
FishPlagioscion squamosissimus
A riverside predator built like a torpedo, surprisingly manageable for its size.
Silver Dollar
FishMetynnis argenteus
Peaceful piranha relatives that will demolish your plants overnight.
Silver Dollar
FishMetynnis hypsauchen
A piranha cousin that's actually peaceful, but don't trust it with small fish.
Silver dolphin catfish
FishAgeneiosus atronasus
A compact Amazonian predator that fits surprisingly well in a community setup.
Silver Hatchetfish
FishGasteropelecus sternicla
A surface-skimming acrobat that leaps to catch insects mid-air.
Silver Mylossoma
FishMylossoma duriventre
A deep-bodied South American schooler that belongs in serious, large setups.
Silver Prochilodus
FishSemaprochilodus taeniurus
A migratory Amazon giant that sifts sediment and schools in impressive numbers.
Silver Tetra
FishGymnocorymbus bondi
A peaceful Orinoco schooler that's more interesting than its plain adult looks suggest.
Silver-tipped Tetra
FishHasemania nana
A glittering, lively little tetra that plays well with almost everyone.