Rainbow Cale

Heteroscarus acroptilus

The Rainbow Cale is a reef-associated fish endemic to the southern coast of Australia. It is typically found in marine environments ranging from Bacon Island in Western Australia to Newcastle in New South Wales, including the northern coast of Tasmania. This species prefers habitats with rocky reefs covered in brown macroalgae and seagrass beds, particularly those dominated by Posidonia. Divers will often encounter this fish at depths between 1 and 15 meters, although it has been recorded at depths up to 40 meters. The Rainbow Cale reaches a maximum length of 24 centimeters. This species is the sole representative of its genus and is known for its association with exposed coastlines. The Rainbow Cale is considered harmless to humans and is of no interest to fisheries, although it is sometimes found in the aquarium trade. According to the IUCN Red List, the Rainbow Cale is categorized as Least Concern. Divers might enjoy observing this species as it moves among the algae and seagrass, contributing to the ecological diversity of its habitat.