Species

Pseudoplatystoma fasciatum

A river giant that outgrows almost every home aquarium faster than you'd expect.

Brachyplatystoma tigrinum

A boldly barred Amazonian predator that demands a truly massive tank.

Aguarunichthys tocantinsensis

A powerful Amazonian predator built for fast water and rocky riverbeds.

Atractosteus tropicus

A living fossil from Central America that grows to canoe-like proportions.

Champsochromis caeruleus

The trout cichlid: a solitary Lake Malawi predator built around an enormous mouth.

Cichla monoculus

A river predator built for size, speed, and a 20-year commitment.

Garra bicornuta

The only Garra with paired facial horns that flex when things get heated.

Vieja bifasciata

Two bold facial stripes mark this colorful, feisty Central American cichlid.

Copadichromis ilesi

A peaceful Utaka cichlid from Lake Malawi with fascinating mouthbrooding behavior.

Hydrolycus armatus

A river predator with fangs to match its reputation, and size to back it up.

Leporacanthicus joselimai

Fanged river catfish with bold markings that fade into something more mysterious with age.

Nandus nandus

A patient ambush predator from South Asia that punches above its weight at feeding time.

Potamotrygon castexi

A disc-shaped river predator that can actually solve puzzles to get its food.

Aphanius villwocki

A rare Turkish killifish with ancient roots and surprisingly active character.

Calophysus macropterus

The Vulture Catfish: a relentless scavenger built for South America's biggest rivers.

Fundulopanchax walkeri

A feisty West African killi with a big appetite and cool-water preferences.

Clarias batrachus

The catfish that actually walks on land and can breathe air.

Neolamprologus marunguensis

A deep-water Tanganyikan shell-dweller with a deeply forked tail and fascinating family dynamics.

Protopterus annectens annectens

An ancient, air-breathing fish that can survive years without water

Rineloricaria lanceolata

A gentle whiptail catfish that breeds willingly and guards its eggs with dedication.

Rineloricaria fallax

A devoted catfish father that breeds readily and tolerates a wide range of tankmates.

Rineloricaria parva

A slender, whip-tailed catfish that breeds readily and suits most peaceful communities.

Vieja argentea

A boldly colored Central American bruiser that rewards patient, experienced keepers.

Catoprion mento

A scale-eating specialist with a dramatic banner-like dorsal fin rarely seen in the hobby.

Betta coccina

A blood-red peat swamp betta that demands soft, acidic water and its own space.

Parachromis dovii

A barrel-chested Central American predator that will eat almost anything it can fit in its mouth.

Potamotrygon leopoldi

A bold black disc covered in white spots. And a venomous spine to match.

Hemibagrus nemurus

A river giant that grows enormous, acts aggressively, and fears nothing. Including you.

Parachromis friedrichsthalii

A bold Central American predator that can handle a touch of salt.

Gastromyzon zebrinus

A boldly barred Bornean hillstream loach that clings to rocks with surprising grip.

Brachyplatystoma juruense

A boldly banded Amazonian predator that rests on the bottom by day and hunts by night.

Haplochromis latifasciatus

A critically endangered Lake Kyoga cichlid that breeds readily in home aquariums.

Macrognathus zebrinus

A boldly patterned burrower that will eat anything small enough to swallow.

Tilapia buttikoferi

Bold, beautifully barred, and notoriously combative. Not for the faint-hearted.

Otopharynx lithobates

A cave-dwelling Malawi cichlid that turns neon blue when ready to breed.