🔍 Description:
The Sponge Crab is a nocturnal scavenger that camouflages itself with a live or artificial sponge on its back — held in place with specially adapted rear legs. This unique disguise not only provides protection from predators but also makes it one of the most bizarre and entertaining inverts to spot in a reef tank.

At night, it emerges to forage quietly along the sandbed and rockwork, eating leftover food and detritus. While generally peaceful, it’s best suited for tanks without delicate inverts or prized corals in reach of its powerful claws.