🐠 Powder Blue Tang (Acanthurus leucosternon)
Marine Surgeonfish • Algae Grazer • Display Species • Indian Ocean Beauty
 
📋 The Powder Blue Tang (Acanthurus leucosternon) is one of the most visually striking surgeonfishes, featuring a vibrant powder-blue body, bright yellow dorsal fin, white pelvic/anal fins, and a dark face mask.
In its natural Indian Ocean reef habitat, it constantly grazes on filamentous algae, helping keep the reef clean and playing an important ecological role. In the aquarium, it needs large open swimming space, very good water quality, and plenty of algae-growth or supplemental marine greens to thrive.
Despite its beauty, this species is challenging for hobbyists — it’s prone to disease (especially marine ich), needs high oxygenation, and requires a well-established tank.
 
💡 Highlights
✨ Iconic coloration: powder-blue body with yellow and white accents — true showpiece species
⚪ Excellent algae-grazer: helps maintain algae control in the tank
📏 Large, active swimmer: needs ample space and open water
✅ Reef-compatible Herbivore: safe for corals if well-fed and stress-free
🐠 High-end specialist: adds premium value and dynamic movement to marine displays