Species

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.

Polypterus palmas polli

An ancient armored predator that breathes air and prowls the riverbed.

Potamotrygon hystrix

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

Tetraodon pustulatus

A rare African giant puffer from the Cross River, built for serious keepers.

Channa bleheri

A rare snakehead small enough for a community tank, if you choose tankmates carefully.

Potamotrygon scobina

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

Pygocentrus nattereri

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

Amphilophus labiatus

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

Serrasalmus rhombeus

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

Carinotetraodon lorteti

A tiny puffer with dramatic color-changing ability and surprisingly long lifespan.

Esox americanus americanus

A pint-sized ambush predator that turns patience into a hunting superpower.

Pao abei

A pint-sized freshwater puffer with a big attitude and sharp teeth to match.

Acestrorhynchus falcatus

A pike-like ambush predator that minds its manners with fish it can't swallow.

Cichlasoma festae

A massive, fierce Ecuadorian cichlid that will eat anything it can fit in its mouth.

Erythrinus erythrinus

A bold, air-breathing predator that mimics killifish as a juvenile to lure prey

Potamotrygon orbignyi

A manageable freshwater ray for those ready to step up to serious specialist keeping.

Monopterus albus

A land-crossing, air-breathing swamp predator that isn't actually an eel at all.

Potamotrygon schroederi

A rare, patterned freshwater ray that demands respect and serious commitment.

Fossorochromis rostratus

The sand-diving Lake Malawi cichlid that buries itself when spooked.

Chitala blanci

A massive Mekong predator that will outgrow almost any home aquarium.

Polypterus endlicheri

A prehistoric African predator that breathes air and grows to impressive lengths.

Polypterus endlicheri endlicheri

A living fossil that can breathe air and survive out of water.

Leiarius marmoratus

A massive schooling catfish with dramatic fins and a nocturnal personality.

Pygocentrus piraya

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

Betta antoni

A soft-water mouthbrooder from Borneo with iridescent blue scales and complex breeding behavior.

Histrio histrio

A master of disguise that drifts the open ocean on floating weed mats.

Arothron mappa

A boldly patterned puffer that roams reef drop-offs with calm, solitary confidence.

Polypterus senegalus meridionalis

A living fossil that breathes air and hunts like a prehistoric predator.

Polypterus palmas

An ancient, air-breathing predator that looks like it crawled out of the Devonian.

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.

Plagioscion squamosissimus

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

Datnioides polota

A bold, bar-patterned predator that bridges freshwater rivers and brackish coastal zones.