Blue Tuskfish

Choerodon cyanodus

The Blue Tuskfish is a reef-associated species found in the Indian and western Pacific Oceans, with a notable presence around Australia. This species can grow up to 70 cm in length and is characterized by its fusiform body shape with about five faint dusky bands on its sides. A pale spot is often visible below the posterior end of the caudal fin in adults, and it lacks a dark spot below the dorsal-fin spines. Blue Tuskfish inhabit sand and rubble areas of reef flats and outer reef slopes, often venturing into very shallow waters. They primarily feed on mollusks and occasionally consume the hatchlings and juveniles of green sea turtles. The species is oviparous, with distinct pairing observed during breeding. Divers may encounter Blue Tuskfish at depths shallower than 40 meters, as 99% of recorded observations occur within this range. The species is currently listed as Least Concern on the IUCN Red List. They are harmless to humans and are sometimes found in the aquarium trade.