[nightgarden]

> Seems like creating an environment that certain funguses like but others don't is pretty tricky, and mostly relies on giving your chosen fungus a head start unless you can maintain perfect sterility.

Yeah, all fungi like pretty much the same environment, so that's impossible but mushrooms need much more oxygen to grow. So it's important to have a lot of fresh air and a lot of humidity. Mycelium actually produces antifungal substances so it quite literally fights for domination of the substrate with others. The "trick" in any grow is to get as many flushes as possible until the mycelium gets too weak to protect itself. Keep in mind that the substrate is metabolised so it becomes less rich in nutrients over time, and mycelium is sitting in its own "piss" so to speak. So at some point it cannot fight other fungi anymore and substrate gets moldy. Even then, you usually have one type of mold winning over. It's pretty random what type of mold you'll get. I think it might be equally hard to grow one chosen type of mold as one type of mushroom...