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hope this works
GrowDranswered grow question 4 years ago
I have some input for both of your questions. Yes this is light stress but most likely due to a Calcium and Magnesium deficiency.
- For this I would add around 100ppm of calmag to your feed, keep that going for the rest of flower on your feed.
The reason for this is because the fan leaves under light are photosynthesizing a lot more then the lower ones and they consume calcium and magnesium a lot more.
Do not top the plant in flower, it will not recover.
Don't cut the fan leaves, they are still putting in the work even though they have some scars, if this worsens it could be beneficial to chop the leaf because at that point its not doing much and just taking energy.
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