The Arrow Crab uses its very long legs to walk over the reef and to climb over almost any obstacle.
Behavior: It rarely bother corals, however the occasional large specimen may pick at small passive fishes. Some Arrow Crabs will eat troublesome bristle worms. Overall, a great reef inhabitant that can live for several years in the home aquarium.
Growth: Maintaining proper Ca, Alk, & Mg levels is important for growth of their shells.
Feeding: The Arrow Crab is a good scavenger and will eat scraps of meaty food missed by the fish.