I use oxydate for botrytis, It's basically h2o2. It is supposed to kill mold on contact but I don't use it as a preventative cause I'm afraid it will kill my spinosad and other benificials. There is a product called Hydrorush and Soilrush that give more oxygen to the roots. Both are designed to break down and release N and O into the root zone for up to a week. My friend's dad runs the company so I've been stocked since before it came out. They have a soilrush now that is designed for soil but the hydrorush will work, it was just before it got approved for soil. Hard to tell how well it works cause my setup was already pretty dialed, but definitely doesn't hurt in any ways. It is supposed to increase nut uptake so maybe soil grows can get some extra boost.