Simplest fix is to just keep the door shut. Barring that, you could take out the screen and affix plexi to the frame of of the lid. Drill holes for ventilation if there aren't any in the front or sides (not entirely sure how your tank is constructed). If you want to skip that altogether, I'd highly recommend a tub. I have a 700ish gram girl, she fits comfortably in a 28qt with one hide and a water dish. Very easy to heat and maintain humidity as wellAll you do is put some vent holes in the lid or sides, put an UTH on a tstat under the tub and call it a day.