I'm not renting, and I clean the mice tank between every 4-7 days, and i have yet to have an issue with odor so far *figures crossed* also I use a hook to transfer to and from feeding enclosure, my hand for reg handling, he eats just fine in it, and hes not been as food aggressive after a week or so from the mice moving in. And he was being a butt even when it wasnt even close to feeding day (monday) and be nippy on a wed/thurs