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Little brown discoloration on older leaves
Elgaranswered grow question 3 years ago
Hey, these are signs of calmag deficiency, these brown spots are the main symptom. Add some calmag and you’ll be okay 😊
JUNGLE_B4RNSanswered grow question 3 years ago
500 or 700 ppm ?
500 is a bit low, 700-750 ppm (NaCl 0.5 scale) should be fine
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