Mr. Tibbs is now about 6 months old. He is a pigasaurus when it comes to food, he often wants to eat 3x a day. Is this normal? His claws are getting to be long. Is it from too much calcium? I add the Rep-Cal Phosphorus Free with D3 every other day and then I add half a Maizuri pellet every other day instead of the Rep-Cal. Is there something wrong with his nails?