Species

Trachycorystes trachycorystes

A hefty South American catfish with unusual reproductive biology and serious presence.

Ecsenius namiyei

A sleek, dark blenny that grazes algae from reef rockwork with quiet confidence.

Melichthys niger

A calm, reef-going triggerfish that's actually safe for community tanks.

Paragobiodon lacunicolus

A tiny goby that spends its entire life tucked inside a single coral colony.

Thorichthys pasionis

A lesser-known Central American cichlid with bold personality and a distinctive dark throat.

Pangio oblonga

A slender, uniformly dark loach that loves company and hides in plain sight.

Ambastaia nigrolineata

A rare, sociable loach with bold racing stripes and fascinating group behaviors.

Balitoropsis zollingeri

A flat-bodied stream crawler that hops and clings across rocks like no other loach.

Lamprologus speciosus

A pint-sized shell-brooding cichlid from Lake Tanganyika with outsized attitude.

Tylomelania zemis

A slow-moving, long-lived snail that grazes peacefully and breeds one giant baby at a time.

Apistogramma hongsloi

A compact Colombian dwarf cichlid that pairs up and parents together.

Channa melasoma

A compact, nocturnal predator built for dark, acidic forest streams.

Acanthurus nigrofuscus

A schooling grazer that overwhelms rivals through sheer numbers.

Auchenoglanis biscutatus

A giant, gentle African catfish that cruises the bottom with calm authority.

Acanthurus nigricauda

A wide-ranging Indo-Pacific grazer that bucks the typical surgeonfish habitat

Hemibagrus wyckii

A river giant that sees humans as a threat. And acts on it.

Geophagus brachybranchus

A sand-sifting eartheater with elaborate mouthbrooding parental care and a surprisingly gentle nature.

Corydoras acutus

A sharp-snouted little armored catfish with a bold black dorsal spot.

Nemacheilus troglocataractus

A blind, cave-dwelling loach from a single Thai cave system.

Schistura jarutanini

A blind cave loach from Thailand that science knows from just 22 specimens.

Ophisternon infernale

A cave-dwelling, eyeless eel from the underground rivers of the Yucatan.

Pimelodus blochii

A boldly striped rivercat that doubles as an accidental seed disperser in the wild.

Channa maculata

A predatory bruiser that breathes air and guards its young with fierce devotion.

Yasuhikotakia modesta

A sociable Mekong loach with vivid fins and a complex social life.

Corydoras nattereri

A long-lived, sociable bottom-dweller that breathes air and blinks at you.

Procambarus alleni

Florida's boldest crustacean, in an almost unreal shade of blue.

Amblydoras nauticus

A hardy little catfish that talks in the dark and rarely shows its face by day.

Chromis viridis

A shimmering, peaceful schooling fish that brings reef lagoons to life in your tank.

Xanthichthys auromarginatus

A long-lived, manageable trigger that actually leaves your rockwork alone.

Parupeneus cyclostomus

A reef-flat hunter that uses whisker-like barbels to sniff out hidden prey.

Calcinus elegans

Vivid blue legs and a big appetite for algae make this hermit a reef workhorse.

Clibanarius tricolor

A tiny, tireless reef cleaner with vivid blue legs and a big appetite for algae.

Symphorichthys spilurus

A bold reef-associated snapper that grows into a true centerpiece fish.

Amphiprion latezonatus

A rare Australian clownfish with bold white bands and a surprisingly deep blue lip.

Paracyprichromis nigripinnis

A peaceful Tanganyikan schooler that hangs vertically against rock walls to spawn.

Stiphodon atropurpureus

A thumbnail-sized stream goby that grazes biofilm and occasionally vanishes into the sand.