My water dish for her is quite small and on the cool side, maybe only 4 inch diameter. I realized pvccages just keeps humidity VERY well in general.

I considered a dehumidifier, but the humidity for my other snakes in the room is just right. So I don't want to make it too dry for everybody. Just need to lower the humidity for the one cage.

It's now just hovering at 80~85%, just after switching to aspen, which isn't as bad as before. The little fan will arrive tomorrow!