Saltcorner
By Bob Goemans
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Acanthurus

Acanthurus nigricans

(Linnaeus, 1758)

Whitecheek Tang, Gold-rimmed Surgeonfish

Likely Reef Tank Suitable

Likely Fish-Only Tank Suitable

Range: Indo-West Pacific Ocean: Cocos-Keeling Islands and Christmas Islands to Southern Japan and south to Hawaiian Islands and the Great Barrier Reef.

Size: 8 inches (20 cm)

Natural Environment: Inhabits shallow coastal reefs and lower surge zones and usually found at depths between 6 - 200 feet (2 - 60 m) where it feeds mainly on filamentous algae.

General Husbandry: Occasionally seen in the trade having a laterally compressed body and a small mouth, such as angelfishes and butterflyfishes having a blackish body with a white bar under the eyes, yellow edging on the upper and lower edges of the aft body, yellow on the spine area of the caudal peduncle, and white, yellow and blue, in that order, on the tail.

Can be maintained in reef or fish-only aquariums having wide-open swimming areas and turbulent, well-oxygenated water flow.

Requires a varied vegetable diet, including fresh macroalgae, Spirulina, zucchini, broccoli, dried seaweed (Nori), and enriched vegetable flakes, and requires two or three feedings per day. Will browse on filamentous and microalgae.

Taxonomy:

    Order: Perciformes

    Suborder: Acanthuroidei

    Family: Acanthuridae

    Genus: Acanthurus

FYI: One per tank.

Easily contracts Marine Ich.

A close relative of A. japonicus. Sometimes sold as a Powder Brown/Gold Rimmed Tang.

Has a sharp forward pointing spine on each side of the caudal peduncle, which folds into a groove. Erected when excited. Handle with care!

Can be quite aggressive towards others in the family.

Browses on filamentous algae, however, rarely lives long in captivity.

Experience Level: Intermediate

Temperament: Semi-aggressive

Diet: Herbivore

Coral Safe: Yes

Fish Safe: Yes

Invertebrate Safe: Yes

Acclimation Time: 30 minutes+

Aquarium Environment: Reef or fish-only aquarium

Tankmates: Moderately aggressive

Minimum Tank Size: 150 gallons

Temperature Range: 72 - 82°F (22 - 27°C)

Specific Gravity: 1.020 - 1.025

pH: 8.0 - 8.5

 Acanthurus nigricans (Whitecheek Tang, Gold-rimmed Surgeonfish)
Photo © Bob Fenner
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