We need more details. (And please people, try to think of some more precise subject lines for your posts. Please, pretty please.)
Yeah my bad, ever since this self quarantine. Ive been smoking an ungodly amount of weed. So details are... 5gallon pots Was using filtered tap water at 6.3 ph and around 700 ppm. Floratrio series nutes Ive switched to RO water and started adding cal mag normally 2.5ml per galloon. Happy frog soil. Im thinking i locked her out and shes deficent of calcium. I flushed her a few days ago just RO water and cal mag at around 6.8ph to see what that would do. I also switched nutes to tiger bloom instead bcuz i ran out of flora. Also im phing too 6.5 now instead of 6.3.
Out of 5 plants in my 4x8 tent only two of them look like this in terms of the spots. The other three look pretty solid. I listened to some guy who said he was a grower and told me to ph my water to 6.25 bcuz thats what northern lights #5 strain likes. Im thinking he was higher than i was when he told me this, i dunno.