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What is this caused by? Spreading through mid leav...

Cookie_monster12
Cookie_monster12started grow question 4y ago
What is this caused by? Spreading through mid leaves quite fast
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Week 8
Leaves. Color - Black or grey
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Ezzjaybruh
Ezzjaybruhanswered grow question 4y ago
My guess would be youve got some salt build up going causing some toxicities and locking out some others causing deficiencies. It appears that you have some N Tox going on judging by the dark green and glossy leaves, that can lock out calcium which it appears to have a deficiency of also. Id flush real well, maybe with a salt clearing product like floraKleen, then give just pH'd water or very light feeds the first couple waterings afterwards. Good Luck!
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RickSanchez
RickSanchezanswered grow question 4y ago
Looks like a CalMag deficiency to me!
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Cookie_monster12
Cookie_monster12answered grow question 4y ago
They are in a peat moss compost, i have been adding in 0.8/1ml/l into feedings of vitalink calmag. Just flushed with 6.0 ph water to clear anything in soil and added in a light feeding after with some calmag and bloom nutes to see if this will help her out
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BostonGirlGrows
BostonGirlGrowsanswered grow question 4y ago
Indoor LEDs grows usually need some light calmag in the feedings. What are you growing in? Soil requires less then say coco. 🌱
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