I use tubs. I break off a handful of coco husk and break it up in a bowl. I get a spray bottle and spray it and mix it to the desired moisture level. I don't put too much in. Just enough to cover the floor of the tub. They move it around quite a bit and it builds up in the corners of the tub. As it dries I just give it a spray here and there to maintain the humidity. It works for me and my snakes always have perfect sheds. I deviate from the instructions but I'm not using a whole brick at a time like some folks do. The spray bottle method works for me.