Critical Purple mephisto..indoor 3x3 tent optic 4 Critical purple at 4 and 1/2 weeks is yellowing pretty bad on 2 of her leaves. Can someone please tell me what this is? And how do I fix it? Also, does anyone have any suggestions for the light height at this point?? Thanks in advance guys!
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Critical purple week 4 yellowing on leaf
- Thread starter John1419
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First pic looks like a Potassium deficiency. Deficiencies are not my forte.
First pic looks like a Potassium deficiency. Deficiencies are not my forte.
If brown spots appear its definately potassium deficiency but otherwise its magnesium imo.
As to light height it really depends on your light but I would say most led would be safe at 24 inches. I had my led about 9 inches from my cola and it didn't burn (still not a good idea) if you have height issues bend them to keep them short and bushy.
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