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Burnt ?
Sygnoman1987started grow question 2 years ago
Hey Guy's !
What's wrong my plants ?
I use Lumatek 465compact pro 25%
My soil is plagron royal mix(ph 7.5)
I add RO water (ph 6.2) with calmag(0,5ml/l),start up(7ml/l) and power roots(1ml/l)
This is the 4week.
Thanks for the answers and happy growing !
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Leaves. Tips - Burnt
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Organomananswered grow question 2 years ago
Yep, a pH of 7.5 will cause trace elements to become unavailable, of which magnesium is one.
Robertsanswered grow question 2 years ago
Appears to be the beginning of magnesium deficiency. Cannabis likes slightly acidic. The 7.5 mix is slightly alkaline. Probably not best substrate for Cannabis in future.
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