Emerald Crab (Mithraculus sculptus)

The Emerald Crab is a small, vibrant marine crab recognized for its deep green coloration. Popular in reef aquariums, it is an active scavenger that helps control algae, detritus, and leftover food, contributing to the overall health and cleanliness of the tank. Its peaceful yet assertive personality makes it an engaging addition to community reef setups.

Size: Typically grows up to 2 inches across the carapace

Country of Origin: Caribbean

Latin Name: Mithraculus sculptus

Care Level: Easy – thrives in stable reef aquariums with plenty of hiding places

Emerald Crabs are omnivores that feed on algae, detritus, and small leftover foods. They are reef-safe with caution, as they may occasionally pick at soft corals or sessile invertebrates if underfed.