Awesome info guys. Chitosan does sound interesting, I doubt that it would be that easy to eradicate fursarium with it though, as well.. I believe it is systemic, but must be air borne as well, as it's classified as a fungi, which would involve spores. I see one paper even recommends burning all plant material during cleanup.
Positive pressure in growroom is great idea, for those exact reasons, maybe even run a sealed room.
As for H2O2, I ran 1.5 ml/ L for every feeding, and it did nothing. Probably would need extreme concentration levels to work, which would kill the plants.
Even though I'm not dealing with this pathogen anymore, I'm interested in this info. Thanks again.