Species

Aphanius sirhani

A critically endangered desert oasis killifish worth keeping as a conservation project.

Hemichromis elongatus

A jewel cichlid with a reputation for being the most aggressive in the genus.

Heniochus singularis

The largest bannerfish, solitary and rarely seen even in the wild.

Devario devario

A bold, wide-ranging danio that rewards keepers who give it room to school properly.

Apteronotus albifrons

A velvety black, ribbon-finned predator that navigates by its own electric field.

Pygocentrus cariba

The Orinoco's apex predator, wrapped in myth and surprisingly manageable alone.

Andinoacara pulcher

A forgiving cichlid with real personality, perfect for community tanks with medium-sized fish.

Paracheilinus cyaneus

A reef-dwelling wrasse that sleeps wrapped in its own slime cocoon every night.

Pleurosicya boldinghi

A tiny, transparent goby that spends its whole life clinging to soft corals.

Halichoeres richmondi

A reef-dwelling wrasse that moves in loose social groups across coral-rich shallows.

Rasbora rubrodorsalis

A tiny Southeast Asian schooler with a vivid red splash on its dorsal fin.

Sphyraena barracuda

A true apex predator that grows to nearly six feet long.

Aphanius danfordii

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

Xiphophorus cortezi

A gentle, lesser-known Mexican swordtail for the planted community tank.

Sciaenochromis fryeri

A brilliantly blue Lake Malawi piscivore that behaves itself in the right company.

Betta smaragdina

A wild-caught relative of the common betta with iridescent emerald scales and surprising calm.

Chitala chitala

A massive, humped river predator rarely seen in the trade despite its size and character.

Papyrocranus afer

A rare African giant with a striking undulating fin and a fierce attitude.

Notopterus notopterus

A nocturnal predator that outgrows most home aquariums faster than expected.

Mylochromis melanonotus

A sand-dwelling Lake Malawi predator with a jaw that caused decades of taxonomic confusion.

Austrolebias adloffi

A tiny annual killifish that races through its entire life cycle in months.

Caquetaia kraussii

A predatory Colombian cichlid that lurks in swamps and ambushes its prey.

Heterandria formosa

One of the world's smallest fish, with a uniquely continuous birthing process.

Parosphromenus ornaticauda

A tiny licorice gourami with an acrobatic courtship display unlike any other.

Dimidiochromis compressiceps

The Lake Malawi ambush hunter famous for a truly unsettling feeding habit.

Ompok eugeneiatus

A shy, schooling catfish from Southeast Asian peat swamps and flooded forests.

Oryzias mekongensis

A tiny Mekong native with vivid fin markings and surprisingly easy breeding habits.

Cypho purpurascens

A bold little reef predator that punches well above its weight in attitude.

Macropodus opercularis

One of the first tropical fish ever kept in Europe, and still worth knowing.

Cichla kelberi

A hard-hitting Amazonian predator that rewards patient keepers with bold personality.

Cichla ocellaris

A river predator that grows to nearly three feet and eats anything it can catch.

Cichla orinocensis

A river predator that grows to nearly two feet and eats its tankmates.

Danio albolineatus

A shimmering, active schooler that thrives in community tanks with minimal fuss.

Acestrorhynchus pantaneiro

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

Crenicichla albopunctata

A compact, manageable pike cichlid with serious predator personality.

Stomatepia pindu

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