Blue Legged Crabs

Blue Legged Hermit Crabs (Cluribanarius tricolor) are the “gold standard” for clean-up crews in the saltwater hobby. Native to the Caribbean, these tiny, industrious scavengers are famous for their bright blue bands and their relentless work ethic. They are one of the most effective tools for controlling nuisance algae and cleaning up uneaten fish food from tight crevices where larger snails or fish cannot reach.

Coloration: Electric blue bands on the legs with orange or red highlights; typically inhabits small cerith or nerite shells.

Size: Usually 0.5 to 1 inch.

Temperament: Generally peaceful (but opportunistic).

Reef Safe: Yes.

Diet: Omnivorous (algae, detritus, and meaty leftovers).

Care Level: Very Easy.