Overview
The Long Arm Shrimp / Macrobrachium (Macrobrachium rosenbergii) is a intermediate freshwater species known for its blue-gray, long orange-tipped claws coloration. Giant freshwater prawn. Bottom.
Origin & Appearance
Origin: Southeast Asia.
Colors: Blue-Gray, Long orange-tipped claws.
Body Shape: Shrimp (curved crustacean). Typical adult dimensions: 30.0 x 4.5 x 7.5.
Sexual Dimorphism: Moderate; females larger with curved underbelly (saddle visible).
Tank & Water Requirements
| Min Tank Size | 53 gallons |
| Temperature | 72–82°F |
| pH Range | 6.5–8 |
| Water Hardness (GH) | 5-15 |
| Bioload | very-high |
| Oxygen Demand | low |
| Plant Safe | caution |
| Aquarium Position | Bottom |
Behavior & Activity
Aggressive bottom walker; massive claws held forward while walking; powerful swimmer; predatory
Speed: 30/100Aggression: 5/10diurnal
Breeding
Moderate
Common Diseases
💊 Vorticella💊 bacterial💊 molt failure
Expert Notes
Giant freshwater prawn; aggressive