Hi, I was wondering if I could just go to the supermarket and buy frozen meat to feed my Alligator Snapper? What types of meat have people been successful with? If I buy fish and just break pieces off at a time from the freezer, whats the best way to defrost the meat or will the warm water in the tank defrost the meat? If I don't feed my turtle vegetables, will that affect the turtles health or growth? Thanks a lot!