Mr.StickyFingers
Active Member
My plants are about 3 weeks old and under a 400w Hps light and are turning yellow. The new leaves are drying out and becoming crispy but the lower leaves seem to be doing okay. I read the problems guid and its most likely a Ph or zinc problem. How can I fix this. What could I put int eh water to lower PH, I dont have ph down solution either. Lime? pot ash?
