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Chilipadi started grow question 1 week ago
Old leaves starting to bronze and spreading. Need help to identify the deficiency.
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Leaves. Color - Dark-brown
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Coopmc answered grow question 6 days ago
https://www.royalqueenseeds.com/blog-how-do-you-prevent-and-treat-nutrient-lockout-in-cannabis-n665
Coopmc answered grow question 6 days ago
Probably nutrient lock out
Coopmc answered grow question 6 days ago
Potassium
https://www.growweedeasy.com/cannabis-plant-problems/potassium-deficiency
GrowingGrannie answered grow question 1 week ago
It's not a deficiency, it's a toxicity - you're giving it too much nitrogen. I'm unfamiliar with the nutes you're giving (this is your Purple Punch, right?) ... but it sounds to me like you're doubling up on the heavy nitrogen nutes (grow & PK???). Cut that in half! You may also want to do a flush if this is getting worse by the minute... when it dries out, you can resume your water/feed routine but the first dose of nutes should be half strength - and KEEP the grow nutes at half strength tapering off to nothing by the time they're in flower. She'll recover (old leaves showing the damage will NOT change but no worries if newer leaves are looking ok).

Good luck!
leafy_greenz answered grow question 1 week ago
Newbie grower here. From what I read, this could be an indication of a Copper deficiency