Species Profile
Powder Blue Tang
Acanthurus leucosternon
Tangssemi-aggressive
Adult size
9″
Minimum tank
125 gal
Temperature
75–82°F
pH
8.1–8.4
Schooling
Solitary OK
Water level
mid
Grows from juvenile
Typically sold at ~2.5″ and reaches 9″ over ~2 years. Plan tank size for the adult, not the fish at purchase.Diet
Marine algae sheets, seaweed, herbivore pellets
Notes
Pastel-blue body with a black face and yellow dorsal fin. Stunning but notoriously ich-prone and one of the more aggressive tangs — best for experienced keepers with large mature systems.
Photo: H. Zell / Wikimedia Commons · Source · CC-BY-SA-3.0