I have been misting my tank daily to keep the humidity up, especially right now since my BP is in a shed cycle. Last night I decided to try something. I have a fairly large piece of mopani wood inside. I took it out, filled a tub with some hot water and soaked the wood for about 15 minutes. This afternoon I checked the humidity. It's usually back down to around 45-50. Today it is still at 64%. Do you think this is just a coincident or did soaking the wood really help? I will keep experimenting to see.