Halloween Hermit Crab (Ciliopagurus strigatus)

Ciliopagurus strigatus earns its name honestly — bold orange-and-black banded legs that look like they were dipped in candy corn. It's one of the more industrious algae grazers you can put in a cleanup crew, and unlike some hermits it tends to leave snail shells alone rather than evicting the neighbors.

Care level: Easy · Temperament: Peaceful · Max size: ~2" · Min tank: 10 gal · Reef safe: Yes · Diet: Omnivore, algae + scavenger