Species

Luciocephalus aura

A Sumatran swamp predator that breathes air and strikes with lightning speed.

Haplochromis perrieri

A piscivorous Lake Victoria cichlid that will eat anything it can fit in its mouth.

Brachyplatystoma capapretum

A large Amazonian catfish that lurks in deep river channels far from shore.

Aphyolebias peruensis

A rare Amazonian killifish with an extraordinarily long egg incubation period.

Alticorpus peterdaviesi

A deep-water Malawi cichlid that grazes the lake's silty, diatom-rich floor.

Puntius sharmai

A tiny, rarely exported Indian barb best appreciated in a species-focused nano setup.

Rhinecanthus aculeatus

A bold reef rearanger that sleeps on its side and makes noise when startled.

Phallichthys fairweatheri

A gentle little livebearer from Central America's marshy backwaters.

Acestrorhynchus microlepis

A sleek, toothy predator that schools as a juvenile and hunts like a pike.

Acestrorhynchus pantaneiro

A sleek river predator that plays surprisingly well with the right tankmates.

Boulengerella cuvieri

A surface-hunting predator that outgrows almost every home aquarium.

Crenicichla albopunctata

A compact, manageable pike cichlid with serious predator personality.

Crenicichla lepidota

A torpedo-shaped predator that brings serious personality to a South American biotope.

Crenicichla lugubris

A deceptively pretty juvenile that grows into a large, predatory tank-buster.

Luciocephalus pulcher

A pike-like gourami relative from blackwater forests, built for ambush.

Serrasalmus eigenmanni

A sleek Amazon predator that's surprisingly manageable for first-time piranha keepers.

Stomatepia pindu

A critically endangered Cameroonian cichlid that turns jet black when spawning.

Paracheilinus carpenteri

A tiny reef wrasse that puts on a dazzling courtship flash of pink and blue.

Halichoeres melanurus

A reef-safe wrasse that earns its keep hunting pests from the sandbed up.

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.

Apogon atricaudus

A secretive Pacific reef cardinalfish that comes alive after dark.

Thoracocharax stellatus

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

Pachypanchax playfairii

A Seychelles-endemic killifish with ridged scales and real personality to match.

Polypterus palmas polli

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

Diodon holacanthus

A curious, spiny puffer that can devour your cleanup crew without a second thought.

Potamotrygon hystrix

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

Hippocampus abdominalis

The largest seahorse species, with a comically round belly to match its personality.

Pachypanchax omalonotus

A non-annual Malagasy killifish with gold-spangled flanks and a tricky identity history.

Alticorpus profundicola

A deep-water Malawi cichlid rarely seen in the wild or the hobby.

Iksookimia pumila

A compact Korean loach rarely seen outside its home country's hobby.

Tetraodon pustulatus

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

Sinogastromyzon puliensis

A flat, current-loving Taiwanese hillstream loach that clings to rocks like a living suction cup.

Nemateleotris decora

A shy reef hoverer with a sail-like dorsal fin and vivid two-tone coloring.