Pics not great but im starting to get a few yellows spots on my leafs and there crisping up onley the bottom 1s im 30 days into it nivana auto northan lights f
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I agree, use your flash when the grow lights are on.
or pull a damaged leaf off, and take a picture.
From what I can see It might be a Magnesium issue.
I'm not 100% sure with out better pictures.
