Zoo Med (3 Packages) PMC-18 Mechanical and Biological Sponge Pack

Zoo Med Mechanical and Bio Sponge TC-20 / MC-20 ZOO MED LABORATORIES Zoo Med's Mechanical Filter Sponge is the first line of defense in removing dirt and floating debris from your terrarium or aquarium. 3 pack Zoo Med's Mechanical Filter Sponge Filter Sponge is the first line of defense in removing dirt and floating debris from your terrarium or aquarium ZOO MED LABORATORIES 3 pack