Help!!!

[maverick76]

I'm struggling to contain an infestation of some sort in my grow tent of the minute...sprayed it with Physan 20 and I think its gone worse actually...Almost all of my plants turned yellow...I dunno if its too much of the spray because I know it can be lethal as well if you overdo it...I'm actually half mourning of the minute since majority of my collection died or is going that way anyway...Lesson learned from this...I'm actually in the process of treating some of it with cinnamon and developing a cinnamon spray as a fungicide...will also clean my grow tent in the process...this is the first time that's happened...I'm also in the process of titrating my humidification that's also probably one of the reasons rots and mold made its way inside...50-60% is ok more than that not really advisable as in my experience...Any more suggestions please from you guys would be of great help...