Here's a couple pics of what I have going on. Some strains I grow this happens every time after the clones are transplanted into the 3" cubes. I have been using sm-90 and h2o2 in the water religiously, and I even started using azamax at the recommended dilution strength. Some strains never get the yellow leaves with brown spots as you see. Mostly my red dragon, deep cheese, and chemdog. However other strains show these symtoms as well. I been doing everything I can think of to fix this problem and yet it still continues. Any help is greatly appreciated.