Ok had to alter my tank a lil bit due to escape attempt... but thwarted that one easily but then had to look into a background fix.. now the background is a little taller and comes up to and touches the glass tops... now my tank doesn't ventilate as well... fog doesnt fog as much and temps are higher,.. anyone have a good DIY or how to on adding ventilation to a tank with small fans or the like??? Thanks guys!!