I have these spots and the tips of my leafs are turning brown and curling up. it’s an auto flower 3 weeks in to flower7D4E3ABB-8106-4452-A6BB-5553CF71CB1D.jpegDownload JPEG • 271KB88CC5917-39B8-409B-8AD4-CB9C57DF2380.jpegDownload JPEG • 355KB
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Need more info. Read this first: https://www.mrgrowit.com/forum/grow-community/read-me-first
How close is your light could be light burn,whats your ph ppm runoff also would be good to add and what nutes your feeding