The Americas

Corydoras axelrodi

A long-lived Colombian cory with variable striping and a surprisingly complex identity.

Chalceus macrolepidotus

A fast-moving, surface-skimming predator with oversized scales and a vivid pink tail.

Serrasalmus humeralis

A fin-eating piranha with a surprisingly low-key reputation for people

Serrasalmus serrulatus

A solitary, fin-biting predator with a famously tangled identity.

Arapaima gigas

A living giant from the Amazon that breathes air like a lung fish.

Serrasalmus piraya

The largest piranha on earth, and legally banned in several countries.

Thoracocharax stellatus

A silvery, deep-keeled jumper that needs a tight-fitting lid and plenty of company.

Xiphophorus maculatus

The beginner-proof livebearer that comes in more color forms than you can count.

Corydoras polystictus

A tiny armored catfish that thrives in groups and breathes air when it needs to.

Potamotrygon hystrix

A flat, venomous predator that vanishes into the sand right before your eyes.

Dianema longibarbis

A gentle Amazon catfish that schools in midwater like a tetra.

Cyprinodon alvarezi

A fish extinct in the wild, kept alive by dedicated hobbyists worldwide.

Dekeyseria brachyura

A colour-shifting pleco that adapts its pattern to match its surroundings.

Scleromystax prionotos

A bony-plated Brazilian catfish that breathes air and packs a painful sting.

Corydoras pulcher

A long-lived armored catfish that breathes air and blinks its eyes.

Centromochlus reticulatus

A tiny gregarious catfish from Guyana that sometimes goes by 'purple oil catfish'.

Nannostomus rubrocaudatus

Tiny, territorial, and blazing with red-purple color. A pencilfish with real attitude.

Corydoras pygmaeus

Tiny catfish that defies expectations by schooling in open water, not just the bottom.

Carnegiella myersi

Tiny, delicate, and built for the surface. The smallest hatchetfish of them all.

Xiphophorus pygmaeus

A pint-sized livebearer with all the personality of its larger swordtail cousins.

Hyphessobrycon procyon

A boldly masked little tetra that's as easy to keep as it is distinctive.

Herotilapia multispinosa

A rare Central American cichlid that actually plays well with others.

Copella vilmae

A jewel-toned splash of color from the blackwater streams of the upper Amazon.

Characodon lateralis

A rare Mexican livebearer with a complicated identity and real conservation value.

Notropsis chrosomus

A native North American minnow that transforms into a living jewel come breeding season.

Pterygoplichthys weberi

A hard-working algae grazer from Amazonian headwaters with a remarkable breathing trick.

Platydoras costatus

A bold-striped catfish that grunts, buries itself, and eats almost anything.

Potamotrygon scobina

A rare freshwater ray that often gets misidentified and mis-sold in the trade.

Piaractus brachypomus

A fruit-eating giant that outgrows nearly every home aquarium.

Pygocentrus nattereri

The world's most notorious fish, and surprisingly misunderstood in the wild.

Laetacara dorsigera

A tiny South American cichlid with a boldly colored chest and a gentle personality.

Amphilophus labiatus

A notoriously aggressive cichlid that somehow also becomes your best friend.

Trachemys scripta elegans

A long-lived turtle that outlasts most aquariums. And many life plans.

Serrasalmus rhombeus

A solitary, powerfully-jawed predator best kept as a single specimen by dedicated keepers.

Moenkhausia oligolepis

A peaceful, easy-to-breed South American tetra often mistaken for its flashier cousin.

Nannostomus erythrurus

A slender, vividly finned pencilfish that rewards patient, detail-oriented keepers.