Mainesmoker
Active Member
I developed these blackish spots on 1 of my 11 plants. Can anyone help me with what it may be. I have not given them any nutes yet. I am growing in promix with additional vermiculite and perlite added. 70-15-15 percentage wise. I was watering with well water with added tablespoon of lime to adjust the PH and add cal/mag. Using flouro's for lights I have 192 watts of mixed 4 footers 6500k,5000k and 2700k. Any and all help with be greatly apprecitated.