This is my first auto run. I have a northern lights auto that the leaves started turning yellow / brown and curling. She is 83 days from seed, 37 days in flower. This plant is making crazy big buds and has been doing well. Im running straight coco in autopots with canna coco nutes. I only run canns A & B with boost, cal mag, and hydroguard. My lights are on a 18/6 schedule around 700 ppfd and 45 dli. I have 2 osolating fans blowing a little above canopy level and 2 below. It may be a normal thing but the curling leaves worry me. Your thoughts?
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Thank you I’ll save that image for future reference.
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Howdy Leroy
What is your pH and EC’s going in?
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Happy anniversery hashtonbutcher! PH is 5.7 and EC is 1500 with 700 ppm.
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Looks like a potassium deficiency Growmie. Tagging a Growmie that’s uses coco and canna nutrients. I would recommend bumping that PH up to 6.0 and increase the potassium. @Dman1969 can help with this 
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I don’t really think it’s a major problem at this point in your grow. I think she takin what it needs to finish up. She’s gettin her fade on Brother. Don’t go by grow times go by your trichs 
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