Quote Originally Posted by stinkyattic
It looks like either a nute burn or a severe magnesium deficiency. You could get either from feeding with only MG. Flush that plant and give it cannabis-specific fertilizer with micronutrients. FoxFarm grow big etc.
Okay.
I already told you what's wrong with your plant.
Did you flush it?
Are you still using that shit miracle kill-your-pot?
Fix those things and if the problem doesn't go away, then, I'm baffled.