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calcium / magnesium deficiency ?
PricklyPeteanswered grow question 4y ago
That clawing is generally a sign of Nitrogen toxicity, as are burnt tips. I would lay off the nutes and see if that helps. Possibly flush with plain water but it's so mild it will likely correct itself without that.
Rock_n_Roll_Randyanswered grow question 4y ago
Looks like nute burn bro. Calmag deficiency makes the leaves go a weird blotchy yellow and rusty spots. Leaves claw up if it's overwatered
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