Florida Marine Research Packaged Sponge for Hermit Crab Brown 3pk SM Freeze Dried Anti-Bacterial Fish & Coral Remedy:

Anti-Bacterial Fish & Coral Remedy: An all natural fish & coral treatment with tea tree extract (Melaleuca)

Includes: U-tube

Each box includes everything required to attach it to your system

High quality overflow boxes feature bulkhead fittings for secure and convenient installation

semi-rigid construction is designed for exceptional visibility and performance for hours of fun

Florida Marine Research Packaged Sponge for Hermit Crab Brown 3pk SM Freeze Dried Anti-Bacterial Fish & Coral Remedy:A natural sponge is an excellent source of extra moisture for your hermit crabs. When placed in a shell dish of fresh water daily, it provides enjoyment as well as necessary moisture as crabs climb on it and chew it.