Kitty's belly scales are getting kind of rusty looking around the edges of some of them. Before last shed a few (3) were very flakey, but they cleared up a lot after the shed, now more are dry seeming and are getting that color to them, only around the edges though. The color is the same as the sudstrate. What is going on? I know what scale rot is supposed to be caused by too much humidity, but what is going on, becuase I have been having problems with low humidity, not high humidity. I am worried.