Common name: Whitespotted surgeonfish

General information

The White-spotted Surgeonfish, scientifically known as Acanthurus guttatus, is a distinctive and attractive marine fish that is popular among aquarists. It is characterized by its dark blue to purple body with a profusion of small, white spots that cover its sides, and a single white spot or 'guttat' on the caudal peduncle, which gives the species its name. This species is part of the Acanthuridae family, which is known for the sharp, scalpel-like spine located on either side of the caudal peduncle, used for defense.

Care

Acanthurus guttatus requires a spacious aquarium with plenty of swimming room and a well-established environment with stable water conditions. They are active swimmers and need ample space to roam. A diet rich in marine algae and vegetable matter is essential for their health, along with supplemental meaty foods. They are generally peaceful but can be territorial, especially towards conspecifics or similar-looking species.

Reproduction

In the wild, White-spotted Surgeonfish are known to form spawning aggregations. However, breeding them in captivity is challenging and rarely successful. They are broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs.

Habitat

Native to the Indo-Pacific region, Acanthurus guttatus is commonly found in coral-rich areas of lagoons and outer reefs. They prefer clear waters and are often observed in depths ranging from shallow flats to about 30 meters. Their natural range extends from East Africa to the central Pacific, including the Red Sea, Indian Ocean, and up to the Hawaiian Islands.