I have a ball python and am trying to keep the humidity up in the cage. It stays at about 30%-40% unless I spray his cage down then it shoots up quick then back down again. The cage is about 75 gallons and it has a mesh sliding lid. It also has a heating pad under its cage and a lamp with a black light bulb in it. I have tried putting plastic on the lid, aluminum foil and it still shoots down. I also put the bowl under the light and it still does not help. There is also a hide box that I made out of tubberware and filled it with an inch of water so he could get his moisture he needs but I never see him go in it. The bedding is cyprus and its supposed to hold moisture and it does for a little while then it drys out. I think the light may be the problem. All help would be great. Thanks