This is his 3rd or 4th time shedding since I've got him. I guess I finally got the humidity right. I was amazed at how fast it came off. It was like one minute he hadn't started yet and the next minute he was totally done. One question though. On the shed skin near the vent there is what looked like a tiny amount of blood. Not much at all, not even a drops worth. Is that normal or a cause for concern?