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.

460 species · freshwater

Other regions in Asia

Pontian Betta

Pontian Betta

Fish

Betta pulchra

A secretive peat swamp betta that broods its young in the father's mouth.

Princess Carplet

Princess Carplet

Fish

Amblypharyngodon chulabhornae

A tiny, peaceful Thai schooling fish that rarely makes it into the hobby.

Puntius Sp. Pearlscale

Puntius Sp. Pearlscale

Fish

Pethia stoliczkana

A peaceful schooling barb from mainland Southeast Asia, best kept in numbers.

Purple Cypris

Purple Cypris

Fish

Devario sp. "Purple Cypris"

A rare schooling danionid with bold lateral bars and competitive male displays.

Purple Passion Danio

Purple Passion Danio

Fish

Brachydanio rosea

A peaceful, colorful little danio that thrives in numbers and suits any community setup.

Pygmy Rasbora

Pygmy Rasbora

Fish

Boraras maculatus

A pea-sized schooling fish that rewards patience with dazzling group displays.

Queen Danio

Queen Danio

Fish

Devario regina

A bold, deep-bodied danionid that thrives in fast-moving company.

Rabbit Snail
✨AI

Rabbit Snail

Invert

Tylomelania sp.

Slow-moving, long-lived snails with a face only a hobbyist could love.

Rainbow Prigi

Rainbow Prigi

Fish

Hypseleotris guentheri

A small Pacific stream goby comfortable in fresh, brackish, or salt water.

Rainbow Shark

Rainbow Shark

Fish

Epalzeorhynchos frenatus

A bold, territorial bottom-dweller with vivid red fins and a big personality.

Raja Betta

Raja Betta

Fish

Betta raja

A wild Sumatran mouthbrooder with dramatic fins and a gentle personality.

Red-backed Paradisefish

Red-backed Paradisefish

Fish

Macropodus erythropterus

A rarely traded Vietnamese paradisefish with red fins and a complex identity

Red Badis

Red Badis

Fish

Badis ruber

A secretive cave-spawning micro-predator with fascinating breeding behavior and bold flank markings.

Red Devil Vampire Crab

Red Devil Vampire Crab

Invert

Geosesarma dennerle

Jewel-bright mini crabs that thrive in paludarium setups with minimal fuss.

Redeye Puffer

Redeye Puffer

Fish

Carinotetraodon lorteti

A tiny puffer with dramatic color-changing ability and surprisingly long lifespan.

Red-finned Loach
✨AI

Red-finned Loach

Fish

Yasuhikotakia lecontei

A sociable loach with complex group dynamics and real personality to match.

Redfin River Barb

Redfin River Barb

Fish

Cyclocheilichthys janthochir

A rarely imported Bornean cyprinid with vivid red fin markings and a gregarious personality.

Red Fin Shark

Red Fin Shark

Fish

Epalzeorhynchos munense

A rarely seen shark with a jet-black body and vivid red fins from Southeast Asian rivers.

Red Racer Nerite Snail

Red Racer Nerite Snail

Invert

Vittina waigiensis

A bold, patterned algae-eater that never reproduces in freshwater tanks.

Red Rainbowfish

Red Rainbowfish

Fish

Glossolepis incisus

A deep-bodied red rainbow that rewards group keeping with dazzling male displays.

Red Spotted Nerite Snail
✨AI

Red Spotted Nerite Snail

Invert

Clithon diadema

A boldly patterned algae grazer that keeps glass and hardscape spotless.

Red-striped Rainbowfish
✨AI

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.

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.