Overview
The Harlequin Shrimp (Hymenocera picta) is a advanced saltwater species known for its white, blue-purple spots coloration. Eats only starfish. Bottom to Surfaces.
Origin & Appearance
Origin: Indo-Pacific.
Colors: White, Blue-Purple spots.
Body Shape: Shrimp (curved crustacean). Typical adult dimensions: 5.0 x 0.8 x 1.2.
Sexual Dimorphism: Moderate; females larger with curved underbelly (saddle visible).
Tank & Water Requirements
| Min Tank Size | 11 gallons |
| Temperature | 75–81°F |
| pH Range | 8.1–8.4 |
| Water Hardness (GH) | dKH 8-12 |
| Bioload | very-high |
| Oxygen Demand | low |
| Plant Safe | yes |
| Aquarium Position | Bottom to Surfaces |
Behavior & Activity
Slow deliberate starfish hunter; pair walks over reef searching for starfish prey; flips and dismembers sea stars
Speed: 20/100Aggression: 1/10diurnalSchooling (6+)
Breeding
Difficult
Common Diseases
💊 Vorticella💊 bacterial💊 molt failure
Expert Notes
Eats only starfish; beautiful