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

Cookie_monster12
Cookie_monster12started grow question 4 years 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 4 years 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 4 years ago
Looks like a CalMag deficiency to me!
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Cookie_monster12
Cookie_monster12answered grow question 4 years 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 4 years 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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