Hello, I have had Sheldon for about a year now. First tortoise ever. He is a red foot, in and open enclosure.. I noticed yesterday that he had like spikes near the backs of his eyes. After further inspection, I noticed his front legs, his spikes or scales are falling off, almost looks like empty holes now and maybe looks brownish. I thought it was the substrate at first. I attached a picture. Please help I'm not sure of it is normal. Don't seem like it tho