I've had my two Hermann's for 3 years now and it seems the recommendations have changed for enclosure substrate since I last did research. I initially set their tables up according to the Hermanni Haven topsoil + sand + coco coir or whatever mixture but it looks like topsoil is no longer recommended? I used to have issues with bugs every once in awhile when they were hatchlings and in more of a closed chamber setup, but now that they are in open tables I don't have a problem. I use locally sourced topsoil as I've had bad experience with trash being in some other ones. I'll use that and some cypress mulch. Why the switch from topsoil, especially if they are going to be living outdoors when it's nice? Just looking for updated info before my next table clean out