I have a question about my beardies tail. At the tip it’s kind of black, and at the very very tip it looks like some black coming out of the tail? He was just shedding on his tail so i was wondering if this could be related to that? He has constant uvb light available, hes alone in his tank, and has vegetables and fruits out all the time. I was wondering what was up with this and if i should worry. I attached two photos.