Trifasciatus Rainbowfish

Trifasciatus Rainbowfish, or three-banded rainbowfish, are found in small rivers and ponds and billabongs (there is that word again!) around Australia. The Banded Rainbowfish grows to nearly five inches and prefers a planted aquarium. These are active swimmers and also prefer to swim in schools, which is a fantastic feature in a large freshwater aquarium. Colors vary depending upon food, water conditions, and presence of females (males always display their fins and colors better with ladies around).

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 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: Banded rainbowfish come in several regional color forms, and males show brighter colors with females around.