Australian Rainbowfish

Australian rainbows are larger, three-inch schooling fish and have an iridescent pattern. We recommend good swimming space and a school of four or more. The aquarium should be at least 20 gallons for any larger rainbow. The larger rainbows from AquariumFish.com come from a pond breeder in Florida and tend to have better size and coloration than Asian-bred rainbows.

Quick Facts

Care Guide

Tank setup: Rainbowfish are active swimmers, so leave open swimming space along the front, with plants along the back and sides. Use a filter, a heater if your room runs cool, and a tight-fitting lid, since they can jump.

Feeding: Feed a quality flake or small pellet once or twice a day, only as much as they eat in a couple of minutes. They also enjoy frozen foods like bloodworms and brine shrimp.

Tankmates: They get along with peaceful fish of similar size, such as other rainbowfish, larger tetras, barbs, danios, corydoras and plecos.

Good to know: Rainbowfish color up as they mature and settle in, and males show their brightest colors when displaying to each other.