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Leaves
Big_Bud420started grow question 4 years ago
Leaves discoloured what’s your thoughts 💭 💭💭
NFT
humidity 50%
2 600 lights
2x2x4 grow tent
Amnesia xxl auto 12 weeks from seed
Open
Buds. Not fattening
Leaves. Tips - Die
Setup. Seeds
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ChitownCannaChicaanswered grow question 4 years ago
Hi, looks like a little nitrogen tox, and heat stress. Also ph?
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The8thChevronanswered grow question 4 years ago
Sounds like you got a weird one here.
So, there are a couple odd possibilities. This could be nute burn. Looks like you've had some nitrogen toxicity. This could be a more advanced stage. If you had N toxicity and already took care of it, disregard this.
Next, and probably most common, would be a lockout caused by excess calmag. At this point in the grow, if you've been feeding calmag straight through, discontinue using it for now. Calmag builds up in the soil or coco over time, and eventually causes potassium lockout.
Last possibility in my opinion is a bloom booster mishap. Too much P and K can lockout micronutrients including calmag which can cause this problem.
I realize this kind of leaves you guessing, but you should know which of these are most likely. Good luck!
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