this may be a silly question but i'm still new here so here goes. i've only had my veiled cham for a few wks. so he is still just the regular green color. i get him out about every day for a little bit to try and get him use to me. well today when i got him out he changed color a bit, with stripes and all like i see pictures of when they are a lot older?? is this normal? he is back to his original color now.