The Americas

Pygocentrus piraya

The largest piranha, and the one that earns the reputation others borrow.

Corydoras cruziensis

A tiny armored catfish from Bolivia with a gut that doubles as a lung.

Paraneetroplus bulleri

A hardy Mexican cichlid built for fast currents and long-term companionship.

Cyprinodon desquamator

A tiny Bahamian pupfish that makes its living stealing scales from other fish.

Micropoecilia picta

A pint-sized livebearer with a taste for brackish water and bold color.

Corydoras schwartzi

A long-lived, armored bottom dweller that genuinely thrives in good company.

Hyphessobrycon eques

Fiery red schooler that turns fin-nipper when kept in too-small groups.

Corydoras seussi

A long-lived Bolivian cory that breathes air and rewards patient keepers.

Heros efasciatus

A gentle giant of the Amazon that plays surprisingly well with others.

Heros severus

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

Acnodon normani

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

Cyprinodon variegatus

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

Nannostomus nitidus

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

Poecilia mexicana

The wild ancestor of the molly we all know, built for tough conditions.

Pyrrhulina brevis

A compact Amazonian predator with surprising personality for its size.

Lepisosteus oculatus

A living fossil built for ambush, not the average home aquarium.

Sorubim lima

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

Corydoras gracilis

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

Osteoglossum bicirrhosum

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

Plagioscion squamosissimus

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

Metynnis argenteus

Peaceful piranha relatives that will demolish your plants overnight.

Metynnis hypsauchen

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

Ageneiosus atronasus

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

Gasteropelecus sternicla

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

Mylossoma duriventre

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

Semaprochilodus taeniurus

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

Gymnocorymbus bondi

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

Hasemania nana

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

Phenacogaster tegatus

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

Corydoras arcuatus

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

Hemiodus gracilis

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

Serrasalmus elongatus

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

Brachyplatystoma platynemum

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

Corydoras similis

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

Baryancistrus sp. "L142"

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

Hypancistrus inspector

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