Scarlet Hermit Crab
The Scarlet Hermit (Paguristes cadenati) crab will eat hair algae and scavenge in your aquarium. Grows to inhabit shells about 1.5 inches long. Scarlet Hermit Crabs are reef safe around corals, but may attack snails and other hermit crabs for their shells. You can reduce the tendency for this behavior by having plenty of empty shells for them to move into. As adults they would need our medium to larger hermit crab shells. They are good cleaners, but they are not particularly cost effective because they are collected at significant depth. These hermit crabs come from Florida.