Hi, I switched my beardie's enclosure a month and a half ago. First it was carpet, then sand, then carpet again. But a month and a half ago I switched to shelf adhesive liner. It works great and anytime they poop I just wipe it up, take them out of the tank and spray it with 409 to sanitize the area, then put them back in. My question is how often should I actually remove the entire shelf adhesive and put in a brand new layer down? I haven't done so yet, I clean their tanks once a week and when I do I spray the entire shelf adhesive with 409 to sanitize it. Thanks for the help.