I have a 4-5 inch fahaka that has quite an appetite for shrimp, krill and of course snails but he seems to favor the snails most of all. I have been feeding him mostly the snails lately and have noticed that his beak/tooth has been ground down to almost a flat surface, is there a possibility of him eating too many snails? Out of all my fish he is my favorite and just want to make sure. THanks!