Is this calcium deficiency?
- Thread starter farofen
- Start date
jondamon
Well-Known Member
Hard to say for sure.
aggressive and late stage calcium deficiency makes the whole leaf necrotic.
Early onset Ca deficiency begins with white spots leading to red rusty spots. Leading to all over leaf chlorosis.
have you got any just starting to show the issue, any that are at early stages of Def symptoms?
How do they look leading up to this?
Diagnosis is the key first and foremost.
My honest answer to most is begin by checking your pH and reducing your feeding strength as it’s easier to recover a plant from lack of food than it is to recover one from an abundance of food.
polishpollack
Well-Known Member
could that be heat damage.
Sorry guys for the late update,been busy .
I might have overfed it lately . With the last nutrients I also gave them 5ml in 10 litters of water of organic sea weed. I gave them all cal mag but not liquid and watered them with pH 6.5.
I upgraded my lights from fluorescent to led ,the SF 4000 ,2 weeks ago . The first week I went from 65% to 80% brightness and now I am up to 100%. Do you think I didn't give them time to get used to the new light?I read around that with led the plants need more calcium,is that true?
Another plant start to have the same symptoms.
I might have overfed it lately . With the last nutrients I also gave them 5ml in 10 litters of water of organic sea weed. I gave them all cal mag but not liquid and watered them with pH 6.5.
I upgraded my lights from fluorescent to led ,the SF 4000 ,2 weeks ago . The first week I went from 65% to 80% brightness and now I am up to 100%. Do you think I didn't give them time to get used to the new light?I read around that with led the plants need more calcium,is that true?
Another plant start to have the same symptoms.
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Herb & Suds
Well-Known Member
More light and advance maturity means more feed