Humidity keeps dropping!! Help please!

[gregcellent]

Vivarium in the mist..it's an all glass enclosure I didn't know if a 60% or 90% humidity would show a big difference on the glass. I was figuring the humidity is Trapped inside the tank and cause moisture no matter what.

[Mentat]

Enclosure hygrometers of all brands are famous for misreadings if probe get's wet. In a vivarium, they will most certainly get wet from misting activities. Usually if you air dry them they will start reading again. If so; try and relocate probe to an area away from misters and foggers. Good luck !