I got 2 whites tree frogs, and for some reason I am getting some kind of moldy mess growing around the bottom of on the wood pieces I have for them to climb. Humidity never really goes over 70% after I mist it, and I do keep saran wrap around 50% of the screen lid, but when I don't do this I have trouble keeping the humidity levels right. I know mold happens when there is not enough ventilation but what am I supposed to do?? Thanks for the help!!