Common name: Bit

General information

The Whitecheek Surgeonfish, also known as the Goldrim Surgeonfish or Powder Brown Tang, is a striking marine fish that adds both beauty and activity to a saltwater aquarium. Its scientific name is Acanthurus nigricans, and it belongs to the family Acanthuridae, which is known for the distinctive 'scalpel' feature on the caudal peduncle, used for defense and territorial disputes.

This species is appreciated for its elegant swimming style and the contrast between its dark body and the vibrant yellow or white margins on its fins. It's important to note that juvenile coloration can differ significantly from adults, with juveniles displaying a more pronounced white band along the cheek.

Care

Whitecheek Surgeonfish require a spacious tank with plenty of swimming room and a well-established environment with stable water conditions. They are herbivorous and thrive on a diet rich in marine algae and vegetable matter. Supplementing their diet with high-quality dried seaweed and algae-based pellets or flakes can help maintain their health and coloration.

These fish are known to be somewhat sensitive to changes in water quality, so regular water testing and maintenance are crucial. They also benefit from a strong and turbulent water flow that mimics their natural reef habitat.

Reproduction

In the wild, Whitecheek Surgeonfish are known to form large spawning aggregations, where they release eggs and sperm into the water column for external fertilization. However, breeding them in the home aquarium is quite challenging and rarely achieved due to their complex life cycle and larval requirements.

Habitat

The natural habitat of the Whitecheek Surgeonfish spans across the Indo-Pacific region, from East Africa to the Hawaiian, Marquesan, and Ducie islands, north to southern Japan, and south to the Great Barrier Reef and New Caledonia. They are typically found in clear lagoon and seaward reefs, often in areas with strong currents, at depths ranging from 1 to 30 meters.