Ok guys I just wanted to come on here and let everyone know I decided to build a custom rack for when i purchase more ball pythons. I'm using all melamine and its all cut to spec. I'll be posting pictures when its finished so you guys can check it out. Just out of curiousity, Would it be bad if i left like 1/4 inch of spece between the top of the tub and the bottom of the shelf above it as a lid?