Aquariumpro
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RegionFreshwaterBrackish

Southeast Asia

The Mekong, Chao Phraya, and the rivers of Borneo, Sumatra, and Java — home to bettas, gouramis, rasboras, barbs, and many iconic community fish.

439 species · fish

Other regions in Asia

Red-striped Rainbowfish
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Red-striped Rainbowfish

Fish

Melanotaenia splendida rubrostriata

A slow-burning rainbowfish that rewards patient keepers with spectacular adult color.

Red-striped Rasbora

Red-striped Rasbora

Fish

Rasbora pauciperforata

A slender, red-striped schooler that thrives in soft, tannin-rich blackwater setups.

Red-striped Toadfish

Red-striped Toadfish

Fish

Dichotomyctere erythrotaenia

A compact, red-lined puffer from mangrove creeks that thrives in brackish setups.

Redtail Barb

Redtail Barb

Fish

Discherodontus ashmeadi

A rare, bottom-dwelling schooler with vivid red-tipped fins and secretive nocturnal habits.

Red-tailed Black Shark

Red-tailed Black Shark

Fish

Cyclocheilos enoplos

A giant Southeast Asian river fish that belongs in public aquaria, not home tanks.

Red Tail Shark

Red Tail Shark

Fish

Epalzeorhynchos bicolor

Bold looks, bolder attitude. This Thai native demands respect in any tank.

Red-tail Tinfoil Barb

Red-tail Tinfoil Barb

Fish

Barbonymus altus

A bold, active schooling barb that quickly outgrows most home aquariums.

Reticulated Flying Fox

Reticulated Flying Fox

Fish

Crossocheilus reticulatus

A fishnet-patterned grazer that thrives in a lively, well-matched community.

Reticulated Hillstream Loach

Reticulated Hillstream Loach

Fish

Sewellia lineolata

A bold hillstream loach with bold patterning and surprisingly easy breeding.

Rice Eel or Rice Field Eel

Rice Eel or Rice Field Eel

Fish

Monopterus albus

A land-crossing, air-breathing swamp predator that isn't actually an eel at all.

Rosy Danio

Rosy Danio

Fish

Danio roseus

A rosy-hued schooling danio that thrives in lively community tanks.

Rosy Loach

Rosy Loach

Fish

Yunnanilus sp. "Rosy"

A rosy little loach that punches above its weight in personality.

Royal Featherback

Royal Featherback

Fish

Chitala blanci

A massive Mekong predator that will outgrow almost any home aquarium.

Sabah Danio

Sabah Danio

Fish

Nematabramis everetti

A Bornean river minnow with dramatically long barbels and a bold shoulder patch.

Sabanus Bumblebee Goby

Sabanus Bumblebee Goby

Fish

Brachygobius sabanus

A tiny brackish goby with bold banding and a big territorial attitude.

Saddle Barb

Saddle Barb

Fish

Barbodes banksi

A rare Bornean barb with a distinctive wedge marking, seldom seen outside specialist circles.

Salween Barb

Salween Barb

Fish

Hampala salweenensis

A rare Salween barb that hunts by suction and needs to be kept in groups.

Salween Grazer

Salween Grazer

Fish

Garra salweenica

A blunt-snouted Salween grazer with a curious three-lobed proboscis.

Salween Loach

Salween Loach

Fish

Acanthocobitis zonalternans

A camouflaged Salween loach that thrives in groups and rewards patient keepers.

Sanggau Betta

Sanggau Betta

Fish

Betta antoni

A soft-water mouthbrooder from Borneo with iridescent blue scales and complex breeding behavior.

Sarasin's Minnow

Sarasin's Minnow

Fish

Oryzias sarasinorum

A rare Sulawesi ricefish with a truly bizarre egg-carrying trick

Scissortail Barb
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Scissortail Barb

Fish

Rasbora rasbora

A large, peaceful schooling rasbora rarely seen outside specialist collections.

Scissortail Rasbora

Scissortail Rasbora

Fish

Rasbora trilineata

The tail-flicking schooler that earns its name every time it rests.

Scooter Loach

Scooter Loach

Fish

Barbucca diabolica

A belly-crawling 'scooter' loach that rarely leaves the substrate.

Serian Borneo sucker

Serian Borneo sucker

Fish

Gastromyzon scitulus

A tiny Bornean torrent-dweller that clings to rocks and grazes algae in miniature rapids.

Shadow Catfish

Shadow Catfish

Fish

Hyalobagrus flavus

A tiny, sociable catfish that actually swims in the open. And has a fish that mimics it.

Shark Minnow

Shark Minnow

Fish

Luciosoma bleekeri

A fast-moving surface predator that needs serious space to thrive.

Sharp-nosed Gourami
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Sharp-nosed Gourami

Fish

Sphaerichthys acrostoma

A rare Bornean mouthbrooder from blackwater streams, gentle and quirky in equal measure.

Siamese Algae Eater

Siamese Algae Eater

Fish

Crossocheilus oblongus

The algae eater that actually eats algae, including the tough stuff other fish ignore.

Siamese Algae Eater

Siamese Algae Eater

Fish

Crossocheilus atrilimes

The real Siamese algae eater. If you can tell it apart from its lookalikes.

Siamese Algae Eater

Siamese Algae Eater

Fish

Crossocheilus langei

The real Siamese algae eater is harder to identify than you'd think.

Siamese Algae Eater
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Siamese Algae Eater

Fish

Crossocheilus siamensisis

The genuine algae-eating workhorse that actually earns its keep in a planted tank.

Siamese Badis

Siamese Badis

Fish

Badis siamensis

A rare Thai cave-spawner with detailed patterning and fascinating paternal instincts.

Siamese Flying Fox

Siamese Flying Fox

Fish

Crossocheilus siamensis

A tireless algae grazer that earns its keep in planted tanks.

Siamese Mud Carp

Siamese Mud Carp

Fish

Gymnostomus siamensis

A plain silver river wanderer that follows the floods across Southeast Asia.

Sidestripe rasbora

Sidestripe rasbora

Fish

Rasbora paviana

A peaceful, stripe-sided stream fish that thrives in groups and suits most community tanks.