i will probably try the towel tomorrow. i put a little longer piece of foil on the top, gonna see how it does for a day. what is a CHE? is that like an under tank heater? and as far as my night bulb, my black light, the humidity stays fine, but its when i use the day lamp is when i cant keep my humidity. i only have one water bowl in there right now, and its about 3/4 of the way directly under my light, but it really isnt doing any good.