I was considering changing Ernie's substrate after we move, and have been considering a cypress/sphagnum moss mix. My question is, how much percentage should be cypress, and how much should be moss? For those of you that use it, have you had luck with it? I currently use Coco coir and sand mix, but it makes him pretty dirty, and he drags it all over his food plate, and it dries out pretty quick under his lights. However, I do like the coir/sand mix much better than cypress alone, as Ernie LOVES to burrow into it. This is why I'm not so sure he would like the cypress/sphagnum mix much..What do you guys suggest?