Overview
The Powder Blue Tang (Acanthurus leucosternon) is a advanced saltwater species known for its powder blue, yellow dorsal, black face coloration. Gorgeous but disease-prone. Mid.
Origin & Appearance
Origin: Indian Ocean.
Colors: Powder Blue, Yellow dorsal, Black face.
Body Shape: Moderately Compressed (oval-flat). Typical adult dimensions: 23.0 x 3.4 x 10.3.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 125 gallons |
| Temperature | 75–79°F |
| pH Range | 8.1–8.4 |
| Water Hardness (GH) | dKH 8-12 |
| Bioload | high |
| Oxygen Demand | high |
| Plant Safe | yes |
| Aquarium Position | Mid |
Behavior & Activity
Fast reef cruiser; constantly swimming and grazing; territorial chasing of other tangs; high-energy movement
Speed: 65/100Aggression: 5/10diurnal
Breeding
Not bred at home; pelagic spawner
Common Diseases
💊 Marine ich (crypto)💊 very prone
Expert Notes
Gorgeous but disease-prone