The Trapezia Pocillopora/Acropora Crab, also known as the Acro Crab, is a small commensal crustacean that lives within the branches of Pocillopora and Acropora corals. It plays a vital role in maintaining the health and survival of its host coral by aiding in water flow, cleaning and defending...
Acropora crabs live among the branches of stony corals where they protect the coral from invertebrates, and the coral protects the crab from fish. In aquariums, they generally serve as a curiosity...