Asia

Rhinogobius giurinus ctenogobius giurinus ctenogobius hadropterus

A hardy little goby from Asia's rivers, surprisingly easy to keep.

Opsarius barna

A bold, fast-moving hill stream schooler that needs equally spirited tankmates.

Devario pathirana

A rare Sri Lankan danio with bold vertical bars and a lively, boisterous personality.

Nemacheilus fasciatus

A neatly patterned stream loach from the cool highlands of Sumatra and Java.

Syncrossus beauforti

A boldly patterned, boisterous loach that demands space and respectful tankmates.

Melanotaenia synergos

A compact, clear-water rainbowfish from Batanta Island's pristine forest rivers.

Batasio tigrinus

A compact Thai catfish with bold tiger patterning and feisty personality.

Mesonoemacheilus triangularis

A boldly patterned Indian hillstream loach with a famously unpredictable temper.

Cyclocheilichthys apogon

A schooling barb built for large, lively communities. No barbels, plenty of personality.

Devario devario

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

Ophisternon bengalense

A burrow-building, air-breathing swamp predator that blurs the line between eel and snake.

Betta splendens

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

Betta persephone

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

Pethia nigripinnis

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

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.

Ambastaia nigrolineata

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

Rasbora borapetensis

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

Balitoropsis zollingeri

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

Macropodus spechti

A close paradise fish relative that thrives where others struggle.

Pethia nigrofasciata

A peaceful Sri Lankan barb whose males blush deep crimson when rivals are near.

Labeo chrysophekadion

A dramatically dark, shark-shaped giant that outgrows most home tanks.

Channa melasoma

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

Hemibagrus wyckii

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

Chilatherina bleheri

A brilliantly colored rainbowfish from one remote Indonesian lake, worth every bit of effort.

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.

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.

Danio kerri

A powder-blue schooling gem from the Malay Peninsula that's rarely seen but easy to keep.

Opsarius bernatziki

A fast, bold hillstream schooler with vivid blue flank bars and serious attitude.

Trigonopoma gracile

A delicate blackwater rasbora with variable color forms from Borneo's forest streams.

Rasbora einthovenii

A peaceful forest-stream rasbora with a charmingly crinkled lateral stripe.

Stiphodon atropurpureus

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

Kryptopterus apogon

A massive river predator sometimes sold to unsuspecting buyers as a cute juvenile.