Quote Originally Posted by killerecho View Post
If you're using one of those analog hygrometers, it should be calibrated using a kit. Once you establish that the hygrometer is working fine, I would suggest attaching one or two 2.5" fans right outside the vent material. It should bring the humidity down to about 60-70%, provided you only mist occasionally.


The vertical conversion you have is much better suited for dart frogs or some other animal that requires less ventilation and more humidity. Dane from Junglebox sells one that has a bit larger vent area (~3.5"). Gray tree frogs are tolerant of a wide range of conditions, but tend to prefer a humidity of around 50-60%. Tree frogs in general require good airflow, else they can stress out or develop bacterial infections.
My home humidity is 75% - which is typical in my area. I actually don't have the waterfall running all day o - only 1 hr three times a day. I will try to obtain a larger vent area and/or attach the fans Thanks for the great advice!