Is this caused by excess nutrients or lack of? I posted a general inquiry in a forum earlier, but now I can post the pic.
Summary: strain unknown, Miracle-gro soil 3 month continuous feeding, 2 lights for 10 hours/day (1 blue and 1 dual blue/red) placed about 18 inches above, constant fan and ventiliation. The scorches appeared before the lights were used as I was using natural sunlight through a window. Now, it's just on grow lights. They appear to be still spreading. Two weeks ago, I flushed the soil medium with warm water.
I'm sure I would have been better off using nutrient-free soil and adding my own, but I'm educating myself as I go...
Thanks!
