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Red Rainbowfish are generally easy to keep and a hardy species that are suitable for community aquariums. Males are a brilliant red and are very popular among aquarium hobbyists, while female have a narrower body of grey to brown tones. The species goes by a few names, including Salmon Red Rainbowfish, Red Iranian Rainbowfish, and New Guinea Red Rainbowfish.

They are active swimmers and prefer to be kept in shoals of 6 or more in planted yet spacious aquariums. This species is native to Lake Sentani in Indonesia.

Please Note: Livestock and Live Plants cannot be shipped to WA and TAS due to State Restrictions. All other states are OK.


Features of Red Rainbowfish:

  • Best kept in a ratio of two males to one female for best colouring males
  • Prefers temperatures of 21 - 26 degrees Celsius
  • Peaceful community fish with fish of similar size & temperament.
  • Reaching 12-15cm.
  • Mature males are bright red, larger and much brighter with a deeper body.


Tank Mate Compatibility:

Red Rainbowfish are peaceful community fish that prefer to swim in groups of 6 or more. Best kept in a ratio of two males to one female. They can be kept in a peaceful community aquarium with fish of similar size and temperament.

Here’s a list of some of the best tank mates for your Red Rainbowfish.



Red Rainbowfish are omnivores. They feed on algae and spirulina based foods as well as protein rich foods such as high-quality flake foods, small pellets, brine shrimp, and any type of worms. 




Red Rainbowfish are best suited to a longer aquarium as they are active and energetic swimmers. An aquarium 3ft or larger is recommended. They are also well known jumpers, thus their aquarium should be well covered. 

After an Aquarium for your fish? Browse our aquariums available here.


Red Rainbowfish prefer water temperatures between 21  ⁰C - 26  ⁰C. 

Looking for an aquarium heater? View available aquarium heaters here.


Red Rainbowfish are happiest in a dimly lit environment. Naturally they are found in Sentani which is densely vegetated. We recommend LED aquarium lighting with adjustable brightness to ensure the light level can be altered for happy fish. 

Need aquarium lighting? View available aquarium lighting here.


Red Rainbowfish enjoy good water quality and flow. Ensure adequate filtration and flow in your aquarium.

Explore aquarium filtration products here.


Red Rainbowfish enjoy dark substrates that mimic their natural habitat. They spend most of their time in the mid to upper water column, so either sand or gravels can be used.

View our range of aquarium substrates here.


Plants for Rainbowfish:

Red Rainbowfish prefer spacious planted aquariums with medium to large plants, including floating plants. Plant the background with tall growing plants, leaving the foreground an open space for swimming. Their natural habitat is densely vegetated with lots of foliage to dart in and out of.

Interested in live plants for your aquarium? View our range of live aquarium plants here.


Decorations for Rainbowfish:

Rock & wood can be placed in the aquarium to mimic natural habitats and provide hiding locations to retreat to. 

View our large range of aquarium decorations here.

Additional Information

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Fish Keeping Snapshot

Preferred Water Parameters