Powder-Blue Surgeonfish.

Acanthurus leucosternon is a tropical fish with the common names powder blue tang and Powderblue surgeonfish.

Appearance

The powder blue tang is light blue with yellow and white highlighted fins. Its face is a uniform black with a white outline. The fish does not undergo color changes as it matures, as some tangs, surgeonfish and unicornfish do. The species can grow to a maximum length of 25cm.

Diet

The powder blue tang, like most fish in the Acanthuridae family, is omnivorous, eating mostly benthic algae.

Range

Acanthurus leucosternon's natural distribution is in the Indian Ocean in clear reef settings, from Indonesia and Christmas Island westward to eastern Africa to the Andaman Sea.

Economic value

The tang is uncommonly harvested for anything other than the marine aquarium industry. It is a commonly sold fish that is moderately difficult to care for, although its popularity is easily exceeded by the Blue tang and Yellow Tang. These are very prone to ICH so be careful when purchasing. Most people will advise to observe in your local fish stores for a couple weeks, this is a false test. Most LFS run low levels of copper in their systems to keep parasites at bay, but not enough to kill the parasites, when they are brought home they should be kept in an isolation tank for 4-6 weeks before introducing them to the display tank. They are reef safe and get along with most species and are arguably the best looking fish available.

Other

The powder blue tang is also used as the logo and trademark of Atos Origin, a global IT services provider.

It appears in the Wii game Endless Ocean.