Overview
The Picasso Triggerfish (Rhinecanthus aculeatus) is a intermediate saltwater species known for its tan, blue/brown/yellow geometric pattern coloration. Geometric colorful pattern. Mid to Bottom.
Origin & Appearance
Origin: Indo-Pacific.
Colors: Tan, Blue/Brown/Yellow geometric pattern.
Body Shape: Moderately Compressed (oval-flat). Typical adult dimensions: 30.0 x 4.5 x 13.5.
Sexual Dimorphism: Minimal.
Tank & Water Requirements
| Min Tank Size | 79 gallons |
| Temperature | 75–81°F |
| pH Range | 8.1–8.4 |
| Water Hardness (GH) | dKH 8-12 |
| Bioload | high |
| Oxygen Demand | medium |
| Plant Safe | yes |
| Aquarium Position | Mid to Bottom |
Behavior & Activity
Active reef swimmer; territorial patrol with aggressive charges; sculling movement using dorsal and anal fins
Speed: 55/100Aggression: 6/10diurnal
Breeding
Not bred at home
Common Diseases
💊 Hardy
Expert Notes
Geometric colorful pattern; Humu Humu in Hawaiian