ok I have a wooden setup and am using sterilite tubs,heat pads and repta bark for the bedding. I put holes in the sides of the tubs and the lid but when I put the lid on the humidity goes to 99%! Can anyone help?? But it is perfect without the lids the humidity is then between 40-70%. What am i doing wrong?? Can anyone give me some guidance or a trick?? I am thinking about cutting a slot out of the lids and replacing with screen. Will this work?? HELP!