I noticed a few days ago that my WTF's right "eye lid" would only open slighly, after watching for a while it seemed like he was trying to get it open but with no luck. The other one functions properly. Could it be that he just got himself a little to dry and that caused the sticking eye lid? He eats well, and I have noticed no other problems, any help or advice would be greatly welcomed! I've been spraying his home daily, and he has purified water that is changed frequently.