Calcium or magnesium defficiency ?

psixerpsx

Active Member
Hello is this cal or mag defficiency ? 4-5 week of flower. Strain is OG kush by Blimburn
I used calmag with half dosage in every watering with plagron terra bloom which does not contain cal or mag until i started using Green sensation week ago should i continue to add calmag or would Epson salts be better ?
Also i noticed that leaves by buds are more Dark Green than usual
And tonight i forgot to set on exhaust fan so they were maybe six hours with just strong oscilation fan going but it is unusualy dry here now i think it could have been in max 70-80%rh without ventilation so i wonder if that could add to this problem or cause some other
 

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I'm assuming you are using an LED, using a LED seems to be the problem no one here has figured out yet.
 
imho more like calcium. If so one option is you add dolomite lime to your soil and let it cook before you start. mg and ca are antagonistic so both together might not work.
 
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