I'm having difficulty maintaining humidity, can anyone help me out with some tips? My terrarium currently has cypress mulch. I also saran wrapped the cool side since its a screen top. I spray the terrarium when I wake up in the morning (the hygrometer reads about 54-60) when I get back from school and then before I go to bed. But when I come home it's usually at like a ridiculously low of 20-15. I'm not sure if my hygrometer is too high off the bottom of the tank.