Common name: Powder blue tang

General information

The Powder Blue Tang, scientifically known as Acanthurus leucosternon, is a strikingly beautiful marine fish that is highly sought after in the reefkeeping hobby. Its vibrant blue body, accented with a yellow dorsal fin and a white chest, makes it a standout in any aquarium. This species is native to the Indian Ocean and is often found in clear lagoons and on the seaward side of coral reefs.

Care

Powder Blue Tangs require a spacious aquarium with plenty of swimming room and a well-established environment with live rock for grazing on algae. They are known to be susceptible to marine ich (Cryptocaryon irritans), so maintaining excellent water quality and a stress-free environment is crucial. A varied diet of marine-based seaweed and algae, along with meaty foods, will help keep them healthy and maintain their vibrant coloration.

Reproduction

In the wild, Powder Blue Tangs are broadcast spawners, releasing eggs and sperm into the water column where fertilization occurs. These tangs have not been successfully bred in the home aquarium due to their complex larval stage, which requires specific conditions that are difficult to replicate.

Symbiosis

While not known for a specific symbiotic relationship like clownfish with anemones, Powder Blue Tangs do play a role in the reef ecosystem by grazing on algae, which helps prevent overgrowth that can be detrimental to coral health.

Habitat

Powder Blue Tangs are found in tropical waters of the Indian Ocean, from East Africa to the Andaman Sea. They typically inhabit coral-rich areas and clear lagoons, often at depths of 2 to 20 meters, where they swim in loose groups.