Amazon & South America
The Amazon basin and its sister rivers (Orinoco, Xingu, Tapajós) — home to tetras, cichlids, catfish, and many of the hobby's most iconic freshwater species.
642 species
Other regions in The Americas
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.
Shining Pencilfish
FishNannostomus nitidus
A rarely-seen pencilfish with a glittering lateral stripe and fascinating nocturnal color shifts.
Short-lined Pyrrhulina
FishPyrrhulina brevis
A compact Amazonian predator with surprising personality for its size.
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.
Six-eyed Tetra
FishPhenacogaster tegatus
The tiny 'six-eyed tetra' from Paraguay with a trick spot pattern.
Skunk Corydoras
FishCorydoras arcuatus
A boldly striped little catfish that breathes air and moves in cheerful gangs.
Slender Hemiodus
FishHemiodus gracilis
A fast-moving Amazon schooler that thrives in large, active biotope communities.
Slender Piranha
FishSerrasalmus elongatus
A sleek, solitary predator that's one of the easiest piranhas to identify correctly.
Slobbering Catfish
FishBrachyplatystoma platynemum
A rarely-seen Amazonian giant named for its unusually thick, drooping barbels.
Smudge spot cory
FishCorydoras similis
A small armored catfish that breathes air and thrives in a lively group.
Snowball Pleco
FishBaryancistrus sp. "L142"
A boldly spotted Amazonian pleco that gets feisty as it grows up.
Snowball Pleco
FishHypancistrus inspector
Bold spotted pleco from Venezuelan rapids, compact enough for a mid-size tank.
South American Lungfish
FishLepidosiren paradoxa
A living fossil that breathes air, crawls on fins, and outlives most pets.
Southern Sailfin Catfish
FishPterygoplichthys anisitsi
A prehistoric-looking giant that moonlights as your tank's cleanup crew.
Spangled Cichlid
FishAcaronia vultuosa
A compact Orinoco predator that punches above its weight in planted setups.
Sparkling Eartheater
FishSatanoperca acuticeps
A sociable eartheater with three bold flank blotches, rarely seen in the trade.
Speckled Piranha
FishSerrasalmus spilopleura
A solitary, razor-toothed predator best kept one to a tank.
Spilotus Cory
FishAspidoras spilotus
A tiny Brazilian cory relative that can gulp air when needed.
Spiny Stream Pleco
FishHypostomus latifrons
A hardy Paraguayan armored catfish with a surprising ability to breathe air.
Spixi Snail
InvertAsolene spixi
A compact, zebra-striped apple snail that actually eats pest snails.
Splash Tetra
FishCopella arnoldi
The fish that leaps out of water to lay eggs on leaves above the surface.
Splash Tetra
FishCopella carsevennensis
A tiny surface-dweller with one of the most acrobatic spawning rituals in freshwater fishkeeping.
Spotted Cichlid
FishAustraloheros facetus
A tough South American cichlid with a big personality and surprising cold tolerance.