I use First Saturday Lime. It's like DE but it doesn't matter if it gets wet. DE has to be reapplied if it gets wet. I have a flour shaker and I just powder the girls up, then sprinkle a layer over all their bedding and the floor of the coop and run. I like the litter box idea, might use my old one to make a dust bath area for the Seramas. Currently I made a rectangle of cinder blocks in their coop and filled it with top soil and some of the FSL. They use it all the time.