Calcinus elegans
The Blue Leg Hermit Crab is a popular cleanup crew member prized for its vivid blue legs and voracious appetite for hair algae, cyanobacteria, and detritus. Tiny and generally reef-safe, it is an effective algae controller when kept in groups. Provide extra empty shells — hermit crabs need to upgrade as they grow and will kill snails for their shells if none are available.
Want to check compatibility with your tank?
Try the Compatibility CheckerSee how Blue Leg Hermit Crab gets along with every other species in our database.
Build your reef tank and check compatibility in real time
Open Reeforia Compatibility Tool