Smooth Box Crab

Calappa crabs are commonly found in shallow coastal waters and reef environments of the tropical and subtropical regions. They are often encountered on sandy or muddy substrates, where their camouflaged appearance helps them avoid predators and ambush prey. Calappa crabs are opportunistic predators that feed on a variety of small marine organisms, including worms, mollusks, crustaceans, and detritus. It's essential to avoid using copper-based treatments in a tank with invertebrates, as it can harm them. Always follow the recommended guidelines for medication use in marine aquariums.

Calappa Crabs are commonly referred to as Smooth Box Crabs. They are collected relatively infrequently compared to more commonly harvested crustaceans like crabs and lobsters. Their color can vary, but it often has a distinctive reddish-brown or orange-brown coloration. The carapace is generally rectangular and box-like in shape, which is a characteristic feature of box crabs. They can grow to up to 6".

Water conditions: Salinity 1.023 - 1.025 Temp (F) 72 - 78, pH 8.1 - 8.4, Hardness 8 - 12 dKH