I have tried plastic over the screen, a new hygrometer and coconut fiber substrate. The bedding is so wet it is like a pool. I have a swimming pool area that takes up 50% of the tank. I have a 10 gallon tank with a screen top and 2 fire bellied toads. What else can I do? I spray the frogs and the humidity is down to 20% within 30 minutes. The heat is fine but can't get the humidity right. I also bought some spray for the frogs that says it is for a low humidity tank and keeps their skin soft for shedding. Any suggestions. Nothing is working. I have moss in the tank too.