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Yellowing leaves


Active Member
Hey guys I have a 4x4 I got mostly autos most of them are in flower but I have a yellowing problem with my leaves and I cant figure out what it's from I'm starting to think it's too much light I got a new high watt led 780 watts from Wall ive been cutting the power back a little but the oldest are about 3 weeks into flower they shouldn't be yellowing this bad I'm using gh with coco I dont think its the nutes because ive been feeding pretty good and the ph has been ok idk what I'm guessing the light any ideas?

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