The Hermit Crab originates from the coastal waters surrounding Mexico, and has a red face and legs. Both claws are of equal size, and members of this genus are sometimes called "Equal-handed Hermit Crabs." This tiny crab lives in abandoned snail shells which will vary in size and shape.
The Hermit Crab is a valuable addition to either a saltwater reef or fish-only aquarium due to their voracious appetite for green hair algae and cyanobacteria. In addition, they provide a valuable service of aerating the substrate by sifting through the sand. It is one of the Hermit Crabs that is reef-safe.
The ideal environment is an established saltwater aquarium with plenty of algae and/or live rock to graze upon. Be sure to provide empty shells of various sizes to accommodate their growth.