hi... been trying to understand these brown spots for awhile now but seems i cant.... need your help guys, is this Cal Mag deficiency? Or what is it? how many PPM of Cal Mag OG Kush needs? Im using RO water comes at 40ppm then i add Cal Mag till 300ppm dwc Ppm 1000 Ph 6.2
no idea mate….if i knew i wouldnt ask …. I thought that if i will ask there there will be enough experts to answer but seems there arent still dont know what is It and how to fix but i haveing this even since veg
Well, it’s been a minute since I ran DWC, actually it was a RDWC, but here’s what I remember. Your pH should be lower more like 5.7-5.9 range for better uptake of nutrients. I never ran my PPMs that high either, i usually was in the 600-800 range.
Nice….everything helps, thank you i remember i was doing 5.8 ph on rdwc before but i kinda forget It as a friend who doing great crops he Said 6.2 ph is best for flowering so i was doing that, i will get back to 5.8 again and see…. Been reading on net that OG Kush is calcium freak but cant find anything on how much calcium ppm they like…usually most other strains ive done was doing great on 250ppm Cal Mag….im giving them 300ppm Cal Mag and still cant see difference…im kinda affraid to give more as maybe its not from Ca and i will make It worst 1000ppm soup is what she like, she is a big girl thank you