Species

Bagarius suchus

A rapids-dwelling predator built more for public aquariums than home tanks.

Indostomus crocodilus

A tiny armored oddity from Thai blackwater streams, best kept in small groups.

Chaetodon xanthurus

The only butterflyfish with a true crosshatch pattern on its sides.

Trochilocharax ornatus

A scaleless micro-tetra with internal fertilization and serious personality for its size.

Hyphessobrycon haraldschultzi

A rare Araguaia gem that rewards patient schooling setups with vivid red coloring.

Nandopsis tetracanthus

Cuba's only native cichlid: territorial, long-lived, and surprisingly personable.

Atractosteus tristoechus

A living fossil from Cuba that outgrows almost any home aquarium.

Bodianus pulchellus

A reef-safe wrasse relative that moonlights as a cleaner fish when young.

Synodontis petricola

The catfish that tricks cichlids into raising its young. Nature's ultimate con artist.

Pethia cumingii

A peaceful Sri Lankan gem with bold black blotches and sunshine-yellow fins.

Biotodoma cupido

A peaceful community cichlid that rewards keepers who buy a proper group.

Acanthurus xanthopterus

A wide-ranging giant surgeonfish that breaks the herbivore rules.

Neolamprologus pulcher

A Lake Tanganyika cichlid with a remarkably complex social family life.

Oryzias woworae

A tiny Indonesian ricefish that glows red and blue at spawning time.

Paretrolplus damii

A rare Malagasy cichlid with fascinating pit-digging breeding behavior.

Paretroplus maculatus

A rare Malagasy cichlid that rewards patient keepers with real personality.

Aphanius danfordii

A rare Turkish killifish relative with fascinating behavior and real conservation value.

Danio feegradei

A restless Burmese danio with complex social dynamics beneath its peaceful reputation.

Celestichthys flagrans

A rare northern Myanmar danio with fiery stripes and a slender build.

Echidna polyzona

A reef moray that hunts crabs, not fish, making it surprisingly tankmate-friendly.

Sparisoma viride

A reef sculptor that literally chews coral into Caribbean sand.

Parupeneus barberinus

A bold, active sand-sifter built for big reef systems with open substrate.

Hemigrammus bellottii

A small, nimble Amazonian tetra with a distinctive body marking worth looking twice at.

Aphyocharax paraguayensis

A lively little shoaler that pairs well with dwarf cichlids and Corydoras.

Pareutropius buffei

A slender West African catfish that blooms with confidence in a shoal.

Acheilognathus macropterus

A large bitterling with a bizarre mussel-breeding strategy unlike almost any other fish.

Placidochromis electra

A sand-sifting Malawi hap gentle enough to keep with Aulonocara and Copadichromis.

Cirrhilabrus bathyphilus

A rarely seen deep-reef wrasse from some of the Pacific's most remote atolls.

Pseudomugil tenellus

A tiny, peaceful Australian blue-eye that glows in a well-planted, sun-drenched tank.

Satanoperca jurupari

A sand-sifting cichlid that's far more peaceful than its name suggests

Ectodus descampsii

A shy, sand-dwelling Tanganyikan cichlid that needs its own kind to feel secure.

Chlamydogobius eremius

A tiny Australian desert survivor that laughs at water conditions others can't handle.

Zebrasoma desjardinii

A sail-finned grazer that turns any large reef tank into open ocean.

Aequidens diadema

A compact blackwater cichlid from the wild heart of the Amazon and Orinoco.

Pictichromis diadema

Bold reef personality packed into a two-tone, pocket-sized package.

Wetmorella albofasciata

A tiny, secretive reef wrasse that haunts caves and rarely ventures into the open.