I'm relatively new to growing and my usual growing help is out of town, I'll refer you to my grow journal if you want to check out my set up (http://forum.grasscity.com/indoor-g...-time-indoor-grow-5-000w-total-5-strains.html) but I'll give you a quick list so you know what's up before I lay out my question. Specs: 5x10 Secret Jardin Darkroom 2 Grow Tent 3 - 6 in. Air Cooled Light hoods 3 - 1000W HPS Bulbs powered by Grow King switchable ballast (240V setting) In Room 8,000 BTU A/C Average room temp of 78 F 6 Plants, 3 Strains (3 Afghanistan Kush, 2 Kryptonite, 1 Blueberry) Watering every other day, 2 gallons per 3 plants Nutrients in the water, Six part Cutting Edge Solutions program with bud candy and, starting yesterday, big bud powder. Coco-fiber blend soil, drain to waste system Day 15 of Flower (3/10/11) Question: The plants are looking extremely healthy, and are budding ahead of predicted schedule, but recently there has been a slight discoloration of between 6-10 of individual leaves on each plant. Not too wide spread but still concerning. What can I do to reverse this coloring and get everything green again in the emerald city? I have a picture of one of the leaves bellow (I had to pull it off the plant to get a good picture of the color). Let me know what you think, any constructive help is appreciated!