The Rabbitfish (Siganus virgatus), also known as the Barhead Rabbitfish, is a species of marine ray-finned fish in the family Siganidae.

Distribution and Habitat

The Barhead Rabbitfish is found in the Indo-Pacific region from the Red Sea and East Africa to the Marshall Islands, north to southern Japan, and south to the Great Barrier Reef. It inhabits shallow coral reefs, reef flats, and lagoons at depths of 1 to 30 meters.

Physical Description

It reaches a maximum length of 30 cm and has a laterally compressed oval body with a distinctive coloration of silver-white with two dark diagonal bands across the body. The head is dark with a white band running from the nape to the throat. It possesses venomous spines on the dorsal, anal, and pelvic fins that can deliver a painful sting.

Diet and Feeding

It is primarily herbivorous, feeding on benthic algae, seaweeds, and seagrasses in the wild. In captivity, it should be offered a diet rich in vegetable matter including dried algae sheets, spirulina flakes, and herbivore pellets. It will also accept some meaty foods.

Behavior and Reproduction

It is generally peaceful and can be kept in community tanks. It is often found in pairs or small groups in the wild. It is a pelagic spawner releasing eggs into the water column, and juveniles may form schools.

Aquarium Care

It requires a tank of at least 75 gallons with ample swimming space and live rock for grazing. It is peaceful toward most tankmates but may be territorial toward other rabbitfish. It is generally considered reef-safe but may nip at some corals. Handle with care due to venomous spines which can cause a painful sting.

Conservation Status

Classified as Least Concern by the IUCN Red List.