Common name: Doubleband surgeonfish

General information

Tennent's Surgeonfish, scientifically known as Acanthurus tennentii, is a striking member of the Acanthuridae family. This species is admired for its vibrant coloration, which includes a blue body with a distinctive double yellow band that runs vertically behind the eye, and a yellow tail. Juveniles often exhibit a different color pattern, with a pale blue body and a yellow dorsal fin.

Care

Tennent's Surgeonfish are active swimmers and require a spacious aquarium with plenty of room to roam. They are herbivorous, primarily grazing on algae, so a tank with ample live rock for algae growth is beneficial. A varied diet that includes high-quality marine algae and vegetable-based foods will help maintain their health and coloration. Surgeonfish are known for their sharp, retractable spine located near the base of the tail, which they use for defense, so caution is advised when handling.

Reproduction

In the wild, Tennent's Surgeonfish are known to form spawning aggregations. However, breeding them in captivity is challenging due to their complex life cycle and larval requirements. Hobbyists typically do not breed surgeonfish in home aquariums.

Habitat

Tennent's Surgeonfish are found in the Indo-Pacific region, from the Maldives to the Philippines, and as far south as Australia. They inhabit clear lagoons and seaward reefs, often in areas with strong currents. They can be found at depths ranging from shallow waters to about 50 meters.

This species is not commonly kept in home aquariums, but its striking appearance and active nature make it an appealing choice for experienced aquarists with large, well-maintained systems.