Gorilla Cookies Auto

Nine weeks from sprout, three to harvest. This week one of the plants started showing discoloration on sugar leaves which I diagnosed as light burn. Buds at the edges of the plant only show discoloration on the light side, and the spots don't appear to be getting worse since I lowered the light level so I'm pretty sure this wasn't a nutrient problem. Funny though that the other plants shows no signs of such stress. I had the LED set at too high a level for the distance the buds are from the light (less than 10 inches). I'm continuing to supplement my water with General Hydroponics liquid nutrients as per the schedule.