Species

Nandus nandus

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

Aphanius vladykovi

A high-altitude Iranian toothcarp that rewards dedicated keepers with non-stop activity.

Potamotrygon castexi

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

Macropharyngodon bipartitus bipartitus

A peaceful shoaling wrasse from the Indian Ocean that thrives in small groups.

Macropharyngodon bipartitus

A boldly patterned reef wrasse that rewards patient, experienced keepers.

Annamia normani

A fast-water hillstream fish that really needs to be kept in a crowd.

Aphanius villwocki

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

Rasbora vulcanus

A tiny, peaceful Sumatran schooler that earns its volcanic trade name.

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.

Antennarius maculatus

A master of disguise that hunts by dangling a lure from its forehead.

Akysis vespa

A tiny banded catfish from Myanmar's fast streams, built like a wasp.

Petrocephalus bovei bovei

A nocturnal African weakfish that retreats into caves by day and hunts by night.

Paramisgurnus dabryanus

The tough, peaceful bottom-dweller hiding in plain sight as a different species.

Phyllopteryx taeniolatus

Australia's leafy coastal phantom, camouflaged beyond belief.

Aplocheilus werneri

A sleek Sri Lankan surface hunter rarely seen outside specialist collections.

Polypterus retropinnis

A living fossil with lungs, armor, and a prehistoric attitude.

Remora australis

The open-ocean hitchhiker that bonds with whales and baffles hobbyists.

Betta albimarginata

A tiny, peaceful mouthbrooding betta from Borneo's blackwater forest streams.

Arothron hispidus

A boldly patterned puffer with a voracious appetite and a personality to match.

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.

Campylomormyrus tamandua

A rare African electric fish with a bizarre beak-like snout and a brain to match.

Potamotrygon leopoldi

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

Stonogobiops yasha

A tiny reef goby that shares its burrow with a nearly-blind shrimp partner.

Dunckerocampus pessuliferus

A reef cleaner that moonlights as one of the more manageable pipefish for beginners.

Ostorhinchus luteus

A tiny Pacific cardinalfish that finds shelter among sea urchin spines.

Hemibagrus nemurus

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

Assessor flavissimus

A tiny reef basslet that casually swims upside down like it's no big deal.

Paracheilinus flavianalis

A small reef wrasse that puts on dazzling courtship displays in group settings.

Opistognathus aurifrons

A sand-burrowing fish that hovers upright and broods eggs in its mouth.

Halichoeres garnoti

A Western Atlantic wrasse that transforms dramatically as it matures.

Parachromis friedrichsthalii

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

Pseudanthias luzonensis

A deep-slope reef dweller that schools beautifully in spacious saltwater tanks.

Hippocampus kuda

A wide-ranging Indo-Pacific seahorse that adapts surprisingly well to aquarium life.