I don't know we're I seen the pics of the brown spots then,a couple of my ladies are showing patches of like rust coloured patches at the mo,I'm start of week 4 now flower ?.
Used calmag once a week from start,only affected area is were fan stayed at one position,curling on tips.
My temp is just under 80 and my outtake is good,my air in is also good ??.
Just started with the green sensation aswell,see what occurs now.:thumbsup: