Bubble Bee snails are excellent sand bed scavengers. They also eat the dteaded Vermetid Snails. Their distinctive shell makes an attractive addition to your reef. They eat leftover meaty foods and keep your sand bed clean. It is very interesting to see them emerge from the top layer of the sand bed when you feed your reef. A must for tanks with sand, We keep many in all our reef tanks with sand. They are totally reef safe.