OK Im new to saltwater, but i thought i new enough to no that snails keep there shells, so what happened? I came home yesterday to find one of my Nassarius Snails climbing the back wall of the tank with no shell :weird: . He was doing it like nothing was wrong. I think i found his shell in front of the rock, shortly there after I watched him start to burry himself in the sand Just like normal. So any takes on what happened. He is still alive today but in my quarentien tank, I moved him and the shell yesterday. Is this normal? will it go into another shell like a hermit. My levels are all normal except my calcium which is about 380. Thanks all