The Calappa Calappa, or Box Crab, is a captivating addition to marine aquariums, prized for its distinctive carapace and nocturnal habits. This small to medium-sized crab is best suited for experienced hobbyists due to its specialised care needs.
Feeding: Calappa Calappa is primarily carnivorous, feeding on molluscs and other small invertebrates. In captivity, provide a diet of meaty foods such as chopped shrimp, mussels, and specialised crustacean pellets. Feeding should be done in the evening or at night to align with its natural activity patterns.
Compatibility: This species is generally peaceful but may prey on smaller invertebrates. It is best kept with robust tank mates and not with small shrimp or delicate reef inhabitants. Avoid housing with aggressive fish that may harass the crab.
Reef Safety: With Caution. While not known to harm corals directly, Calappa Calappa may disturb the substrate and small sessile invertebrates, so careful monitoring is advised in reef setups.
Care Requirements: Provide a sandy or fine substrate for burrowing and hiding. Moderate water flow and stable water parameters are essential. A minimum tank size of 75 litres is recommended to ensure adequate space and water quality.
Placement: Place the crab in a quiet area with ample hiding spots such as rock caves or crevices. Nighttime feeding and observation are recommended to appreciate its natural behaviour.
Overall, Calappa Calappa is a unique and rewarding invertebrate for marine aquarium enthusiasts willing to meet its specific care needs.
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