So my two one year old baby pancake tortoises have different shell growth. One is growing smooth while the other is pyramiding. Humidity is 80% during the night and drops to 50% during the day. They have full spectrum lighting and get greens and grasses offered to them and the food is dusted about once to twice a week with a vitamin/calcium and they have a cuttlefish bone in the tank all the time. Why is this one like that? In the pictures the darker one is the odd one with the strange growth.