I have recently purchased a clam and it has finally decided to attach itself. Unfortunately it decided to attach to the rockwork instead of the base I made for it. It also moved itself to about halfway between standing up and being on its side. Is it ok that it is leaning half way over? Also I noticed that on one side of the shell, it had some damage. In the white area where the clam is growing, some of the tips look a little chipped. Would this be from falling over before it became attached? Thanks for any help.