Overview
The Decorator Crab (Camposcia retusa) is a intermediate saltwater species known for its variable (camouflage dependent) coloration. Attaches coral/algae to shell for camouflage. Surfaces.
Origin & Appearance
Origin: Indo-Pacific.
Colors: Variable (camouflage dependent).
Body Shape: Crab (wide carapace). Typical adult dimensions: 7.0 x 10.0 x 4.0.
Sexual Dimorphism: Moderate; males have narrower abdomen.
Tank & Water Requirements
| Min Tank Size | 20 gallons |
| Temperature | 75–81°F |
| pH Range | 8.1–8.4 |
| Water Hardness (GH) | dKH 8-12 |
| Bioload | low |
| Oxygen Demand | medium |
| Plant Safe | yes |
| Aquarium Position | Surfaces |
Behavior & Activity
Slow reef walker; picks coral fragments and attaches to shell for camouflage; methodical deliberate movement
Speed: 20/100Aggression: 4/10diurnal
Breeding
Difficult; larvae need saltwater
Common Diseases
💊 Molt failure💊 bacterial
Expert Notes
Attaches coral/algae to shell for camouflage