First off, thanks for welcoming me. Hope everybody had a good weekend. I'm about a week into having a Mex Red Knee, it's about 2 1/2" long and still in the same store bought (petco) enclosure. The new one I ordered should be here tomorrow ... what is the best substrate mix ? I've been seeing mixed reviews about everything. From The BioDude selling trash and charging way too much for shipping to just go dig up some dirt in the woodz. Any feedback would be greatly appreciated.