Acanthurus Japonicus – Profile | Facts | Biology | Care

Acanthurus Japonicus

Acanthurus japonicus is a tang from the Indo-West Pacific. It sometimes makes its approach into the aquarium trade. It grows to a dimension of 21 cm in size. It is often known as Japan surgeonfish, white-faced surgeonfish, gold rim tang, powder brown tang, and white-nose surgeonfish.

It is well discovered within the shallow water reef space of Green Island, a well-known diving web site positioned 33 km (21 miles) away from the southeast coast of Taiwan.

Acanthurus Japonicus Distribution Countries

Indo-West Pacific: Sulawesi (Indonesia) to the Philippines and Ryukyu Islands.

Acanthurus Japonicus Size

Max size : cm TL male/unsexed;

Short description

Dorsal spines (total): 9; Dorsal smooth rays (complete): 28-31; Anal smooth rays: 26 – 29. A broad white band extending from the decrease fringe of the attention to the upper lip.

Acanthurus Japonicus

A brilliant orange band within the outer part of the smooth portion of the dorsal fin. Caudal peduncle yellow, shading to black a brief distance anteriorly. The base of the pectoral fins yellow.

The Powder Brown Tang Acanthurus japonicus is a good-looking fish with very good markings. Its black dorsal and anal fins have exquisite blue edging. A pink band marks the back of the dorsal fin and yellow stripes run alongside the body simply above and under these fins.

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Its body, typically a brown to blackish blue, is the place the name Powder Brown Tang comes from. and it is usually often known as the Powder Brown Surgeonfish and Powder Black Surgeon. But curiously, it could shortly change the whole rear portion of its body to yellow with temper or surroundings.

It additionally has fairly a little bit of white on its face, extending from the attention to the mouth. Thus it is usually identified by the frequent names White-faced Surgeonfish and White-nose Surgeonfish.


In clear lagoon and seaward reefs, often in shallow uncovered areas. Found in small to giant aggregations. Sometimes solitary. Learn more about giant oarfish.

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