I have a new baby golden dogface puffer. (not in my reef tank)I have been told that a good way to keep teeth growth under control is to provide mussels, clams, and other sheeled food. I was wondering if anyone know where is a good place to find mussels, etc.? i have been to some LFS, and grocery stores but not had any luck. Any help would be appreciated.

Here is a pic of the little guy.