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The Clown Rasbora is also known as the big spot Rasbora or Rasbora Kalachroma, and is a larger member of freshwater Rasbora fish family. The Clown Rasbora is a peaceful shoaling species and enjoys a planted aquarium in groups of 8 or more. Suited to the intermediate aquarist due to their sensitivity during water changes.

Native to Peninsular Malaysia and the Greater Sunda Islands of Borneo and Sumatra, the Clown Rasbora is naturally found in densely vegetated black water streams. They are a timid species and will gain confidence with lots of hiding spaces and in groups.


Features of Clown Rasbora's:

  • Reddish-copper color body with dark spots on their bodies, anal fins, and tails.
  • Male Dwarf Rasbora's are slimmer & brighter than females
  • Active during the daytime & rest at night
  • Grows up to 9cm

The Best Aquarium Size for Clown Rasbora's:

The minimum tank size for a small group of Clown Rasboras is 100L. The Clown Rasbora will occupy the top to middle water column in the aquarium.

We always recommend going with larger aquariums if your budget allows. 

After an Aquarium for your fish? Browse our Aquarium Tank Selection here.

Tank Mate Compatibility:

The Clown Rasbora is a shoaling fish and should be kept in schools of 8 or more. This species finds security within the group. They are a timid species that do best with other small shy species of fish. 

Great tank mates for Clown Rasbora's include:

 Coburg Aquarium, specialize in a large range of species of live fish.

Feeding :

Clown Rasbora's have small mouths so keep this in mind when selecting food. We recommend feeding three times a day a combination of pellets or flakes, live or frozen food like brine shrimp, & bloodworms.

Check out our extensive range of aquarium fish foods.


Clown Rasbora Fish Tank Setup:

Aquarium Filtration

Naturally found in slow moving streams, mimic the Clown Rasbora’s natural environment by using a good aquarium filter that won’t create strong water movements. They are sensitive to water changes and fluctuations in water quality, so ensure adequate filtration.

Browse aquarium filters here.


Aquatic Plants for Clown Rasbora's

The Clown Rasbora is naturally found in heavily vegetated water systems and finds security and comfort in heavily planted aquariums. It provides shade & spaces to hide to ensure happy fish. 

Interested in live plants for your aquariums? Browse live plants here.

Tank Decorations for Clown Rasbora's

Clown Rasbora's enjoy black water aquariums and acidic water. The colour of fish are enhanced when conditions are ideal and fish are less stressed. Add driftwood and natural decorations that release tannins to mimic their natural environment.

Check out our Aquarium Ornaments.

Substrate for Clown Rasbora's

Dark coloured substrates enhance the colour of the fish and help lower light levels, reducing stress. 

A variety of Substrates are available at Coburg Aquarium. 

Additional Information

Other customers have purchased

Fish Keeping Snapshot :

Preferred Water Parameters :

Aquarium Set-up Service:

Our design team enables us to create the tank you desire, install your tank where you wish to and provide a maintenance service to ensure everything runs smoothly. We can create almost any aquarium from the small home aquarium to large commercial aquariums for offices, hotels or restaurants. Coburg Aquarium, Australia's leading aquarium shop.

Please contact us if you need any custom tank services.