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10-07-2006, 04:16 PM#7
Senior Member
Brown/copper spots on lower leaves
Its nute burn I would bet my left nut on it your plants are small they should only be at about 200 ppm at that stage with that light I run 2k when my plants are that big I am at only 400 ppm plus it is strain dependant but I know for a fact its nute burn.
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