Can I use psilocybe cubensis cakes that are basically spent and put them into my soil bin to stew with the rest of it? Is there anything about that mushroom species that will be negative in my cannabis soil? The cakes are chunk coir, aged horse manure(hand picked from a local field), vermiculite, and I'm not sure what else, that might be it. Anyway they're extremely natural compost. I don't want to sterilize this if I don't have to.