I have a 3.5 foot male bp. Hot spot low 90's cold side high 70's to 80.

I have noticed that my ball python has developed brittle scales on his underside over the past little while. Not terrible, but when I slide my hand against the grain the scales seem to get caught very easily.

My first impression was humidity trouble. I have been a little up and down with the humidity for the past little while. I think my cheap humidity reader is broken. The substrate is shredded coconut. I do not let it get dry but I certainly do not keep it moist.

My next guess was scale rot, but I am really not sure how that could happen as I clean his enclosure regularly and as I said, I don't allow it to be damp at all.

He is not going into shed either.

I have never heard of this trouble in the past. Has anyone had this in the past? Any ideas?

Thanks