The Powder Blue Tang (Acanthurus leucosternon) is a marine (saltwater) fish in the Acanthuridae surgeonfish family. It is also known as the Powder-Blue Surgeonfish.
The Powder Blue Tang is blue with a streak of yellow on its dorsal fin. Its face is blue-black and its mouth, throat, and pelvic fins are white. It has an oval-shaped, flat, compressed body. It has a small mouth shaped like a parrot’s beak, with sharp teeth.
It grows to 23 centimetres (9 inches) in length.
It is native to the waters of the Indian Ocean. It prefers shallow tropical waters near the coast in reefs and lagoons.
It is diurnal, active during the day. It is herbivorous, eating mostly algae.
The Powder Blue Tang is solitary and territorial.
Location of photographs:Aquarium de Paris-Cinéaqua, France
Photographer: Martina Nicolls
Martina Nicolls: SIMILAR BUT DIFFERENT IN THE ANIMAL KINGDOM