Overview
The Randall's Pistol Shrimp (Alpheus randalli) is a beginner saltwater species known for its red-orange, white bands coloration. Pairs symbiotically with watchman gobies. Bottom.
Origin & Appearance
Origin: Indo-Pacific.
Colors: Red-Orange, White bands.
Body Shape: Shrimp (curved crustacean). Typical adult dimensions: 4.0 x 0.6 x 1.0.
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 |
Behavior & Activity
Burrow builder; digs and maintains shared burrow; goby acts as lookout; snaps claw producing cavitation bubble
Speed: 25/100Aggression: 3/10diurnalSchooling (6+)
Breeding
Moderate
Common Diseases
💊 Vorticella💊 bacterial💊 molt failure
Expert Notes
Pairs symbiotically with watchman gobies