So for the people that use Aspen in their tubs, do you only use the shredded snake aspen or do you use the regular aspen chips that you can buy at the feed store that are used for rats and stuff? I have my Balls on newpaper, but I don't like it and want to switch to aspen. But I am unsure if using the same stuff that I use for my rat colonies is ok. And if you use the regular aspen do you feed your snakes in the tub with the aspen or remove the snake to feed it? Thanks