Adding Soil to Substrate

[HyprNekoStorm]

My largest Megasoma Sleeperi larvae has recently emerged at the top of the substrate two times. I inspected his substrate and it is clogged with feces. Could I mix in some sort of soil to reduce the percentage of feces, or do I have to get new substrate?

[PowerHobo]

You can sift your substrate to remove as much of the frass as possible, but you'll likely still need to add new rotten/fermented hardwood sub. Just soil isn't going to do the trick for Megasoma  spp larvae.

When you add your new sub, don't just take your larvae and put them in the fresh sub, fill the container with half new sub and half old (placing the larvae in the old).