So I have an astrea snail that hasn’t moved in a week or so and I’m wondering if it’s dead. It still has the fleshy part in it. Typically doesn’t move when it’s on the sandbed, but when I place it on the rocks, I always find the same snail flipped over the next day. Doesn’t smell bad. Haven’t seen any movement in a week though which has me concerned. Should I remove and discard the snail or give it some more time before discarding it?