Species

Betta splendens

The world's most recognizable fighting fish, now bred in countless colors and fin shapes.

Rhaphiodon vulpinus

A sleek South American predator that outgrows almost every home aquarium.

Polypterus bichir bichir

A living fossil that breathes air and hunts by smell alone.

Acaronia nassa

A wide-eyed Amazonian ambush predator that makes the most of its stillness.

Acestrorhynchus falcirostris

A riverine ambush predator that plays surprisingly well with tankmates it can't eat.

Synodontis alberti

The Synodontis with the longest barbels and biggest eyes in the genus.

Xenotilapia sima

A sand-sifting Tanganyikan schooler that rarely turns up in the hobby

Cyprinodon pachycephalus

A rare Mexican pupfish with a notably broad head and a challenging side.

Apistogramma norberti

A pocket-sized Peruvian cichlid with a big personality and cave-spawning habits.

Osteoglossum ferreirai

A surface-cruising river predator that leaps for prey in the wild.

Copella callolepis

A tiny Amazonian schooler that rewards patience with vivid courtship displays.

Laemolyta orinocensis

A sleek, banded Orinoco native that tilts head-down as it forages.

Copella nigrofasciata

A dapper little Amazonian splasher with devoted fathering instincts.

Limia melanogaster

A rarely seen Caribbean livebearer with bold dark coloring and lively personality.

Vieja maculicauda

A bold, brawny Central American cichlid with a namesake black band and real attitude.

Trachycorystes trachycorystes

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

Sarotherodon melanotheron melanotheron

A tough West African cichlid where dad handles all the childcare duties.

Poecilocharax weitzmani

A cave-guarding micro-predator from blackwater South America with serious attitude.

Betta persephone

A velvety black pygmy betta from some of the world's most acidic swamps.

Myleus schomburgkii

A disc-shaped, plant-munching pacu with a bold black flank bar and surprisingly peaceful nature.

Pethia nigripinnis

A cool-water gem from India's Western Ghats, rarely seen outside specialist collections.

Apteronotus albifrons

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

Thorichthys pasionis

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

Betta siamorientalis

A tiny bubble-nesting betta with a blackish body and vivid red fin details.

Pangio oblonga

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

Bagrichthys hypselopterus

A deep-river Asian catfish with an impressively tall dorsal fin and bold personality.

Apistogramma gibbiceps

A cave-spawning dwarf cichlid from the blackwater rivers of the Amazon basin.

Ambastaia nigrolineata

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

Thayeria boehlkei

The tetra that swims nose-up and wears a bold racing stripe to its tail.

Rasbora borapetensis

A peaceful schooling fish with a vivid red tail that really shines in a group.

Epiplatys dageti dageti

A hardy, surface-loving killifish that's a perfect gateway into egg-scattering species.

Balitoropsis zollingeri

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

Carassius auratus var. blackmoor

The velvety, telescope-eyed goldfish that turns heads in any pond or tank.

Hyphessobrycon herbertaxelrodi

A boldly patterned schooling fish that thrives in a lively community setup.

Barbus candens

A tiny Congo rarity that rewards patient keepers with delicate charm.

Lamprologus speciosus

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