Crushed oyster shells

Your isopods as well as other inverts benefit from having calcium in their diet, for isopods in particular it is very much needed. It promotes breeding and overall good health. Oyster shells have one of the highest calcium contents. We here use this for our cultures and see how well our cultures do with it, so much so that we have decided to offer it here as well. Comes in a packed, convenient 5.5-ounce bag.