Aquariumpro
🔍
RegionFreshwater

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

Severum

Severum

Fish

Heros severus

A large, easygoing cichlid with personality to spare and a surprisingly gentle nature.

Sheep Pacu

Sheep Pacu

Fish

Acnodon normani

A compact pacu with tiger stripes and a bad habit of snacking on scales.

Sheepshead Pupfish

Sheepshead Pupfish

Fish

Cyprinodon variegatus

A tough little pupfish that thrives where most fish would struggle to survive.

Shining Pencilfish

Shining Pencilfish

Fish

Nannostomus nitidus

A rarely-seen pencilfish with a glittering lateral stripe and fascinating nocturnal color shifts.

Short-lined Pyrrhulina

Short-lined Pyrrhulina

Fish

Pyrrhulina brevis

A compact Amazonian predator with surprising personality for its size.

Shovel-nosed Catfish

Shovel-nosed Catfish

Fish

Sorubim lima

A head-down ambush predator that swims like a falling leaf among the roots.

Shy Cory
✨AI

Shy Cory

Fish

Corydoras gracilis

A tiny, shy cory with a bold arched stripe and a surprising air-breathing trick.

Silver Arawana

Silver Arawana

Fish

Osteoglossum bicirrhosum

An ancient, leaping predator that quickly outgrows almost every home aquarium.

Silver Croaker
✨AI

Silver Croaker

Fish

Plagioscion squamosissimus

A riverside predator built like a torpedo, surprisingly manageable for its size.

Silver Dollar

Silver Dollar

Fish

Metynnis argenteus

Peaceful piranha relatives that will demolish your plants overnight.

Silver Dollar

Silver Dollar

Fish

Metynnis hypsauchen

A piranha cousin that's actually peaceful, but don't trust it with small fish.

Silver dolphin catfish
✨AI

Silver dolphin catfish

Fish

Ageneiosus atronasus

A compact Amazonian predator that fits surprisingly well in a community setup.

Silver Hatchetfish

Silver Hatchetfish

Fish

Gasteropelecus sternicla

A surface-skimming acrobat that leaps to catch insects mid-air.

Silver Mylossoma

Silver Mylossoma

Fish

Mylossoma duriventre

A deep-bodied South American schooler that belongs in serious, large setups.

Silver Prochilodus

Silver Prochilodus

Fish

Semaprochilodus taeniurus

A migratory Amazon giant that sifts sediment and schools in impressive numbers.

Silver Tetra

Silver Tetra

Fish

Gymnocorymbus bondi

A peaceful Orinoco schooler that's more interesting than its plain adult looks suggest.

Silver-tipped Tetra

Silver-tipped Tetra

Fish

Hasemania nana

A glittering, lively little tetra that plays well with almost everyone.

Six-eyed Tetra
✨AI

Six-eyed Tetra

Fish

Phenacogaster tegatus

The tiny 'six-eyed tetra' from Paraguay with a trick spot pattern.

Skunk Corydoras

Skunk Corydoras

Fish

Corydoras arcuatus

A boldly striped little catfish that breathes air and moves in cheerful gangs.

Slender Hemiodus

Slender Hemiodus

Fish

Hemiodus gracilis

A fast-moving Amazon schooler that thrives in large, active biotope communities.

Slender Piranha

Slender Piranha

Fish

Serrasalmus elongatus

A sleek, solitary predator that's one of the easiest piranhas to identify correctly.

Slobbering Catfish

Slobbering Catfish

Fish

Brachyplatystoma platynemum

A rarely-seen Amazonian giant named for its unusually thick, drooping barbels.

Smudge spot cory

Smudge spot cory

Fish

Corydoras similis

A small armored catfish that breathes air and thrives in a lively group.

Snowball Pleco

Snowball Pleco

Fish

Baryancistrus sp. "L142"

A boldly spotted Amazonian pleco that gets feisty as it grows up.

Snowball Pleco
✨AI

Snowball Pleco

Fish

Hypancistrus inspector

Bold spotted pleco from Venezuelan rapids, compact enough for a mid-size tank.

South American Lungfish

South American Lungfish

Fish

Lepidosiren paradoxa

A living fossil that breathes air, crawls on fins, and outlives most pets.

Southern Sailfin Catfish
✨AI

Southern Sailfin Catfish

Fish

Pterygoplichthys anisitsi

A prehistoric-looking giant that moonlights as your tank's cleanup crew.

Spangled Cichlid
✨AI

Spangled Cichlid

Fish

Acaronia vultuosa

A compact Orinoco predator that punches above its weight in planted setups.

Sparkling Eartheater

Sparkling Eartheater

Fish

Satanoperca acuticeps

A sociable eartheater with three bold flank blotches, rarely seen in the trade.

Speckled Piranha
✨AI

Speckled Piranha

Fish

Serrasalmus spilopleura

A solitary, razor-toothed predator best kept one to a tank.

Spilotus Cory

Spilotus Cory

Fish

Aspidoras spilotus

A tiny Brazilian cory relative that can gulp air when needed.

Spiny Stream Pleco

Spiny Stream Pleco

Fish

Hypostomus latifrons

A hardy Paraguayan armored catfish with a surprising ability to breathe air.

Spixi Snail
✨AI

Spixi Snail

Invert

Asolene spixi

A compact, zebra-striped apple snail that actually eats pest snails.

Splash Tetra

Splash Tetra

Fish

Copella arnoldi

The fish that leaps out of water to lay eggs on leaves above the surface.

Splash Tetra

Splash Tetra

Fish

Copella carsevennensis

A tiny surface-dweller with one of the most acrobatic spawning rituals in freshwater fishkeeping.

Spotted Cichlid

Spotted Cichlid

Fish

Australoheros facetus

A tough South American cichlid with a big personality and surprising cold tolerance.