I have a bubble auto growing in coco at about 6 weeks and some of the leaves are spotting and brown as per the photo.
I have increased my cal/mag (x2) and my ph level is at 6 (last feed yesterday) It seems to have worsened over night, but Iām not sure how long it will take to recover?
Please help.
Iām going to suggest Potassium, especially with the Coco. Could be Magnesium, but Iām putting my money on Potassium.
Calcium def would be focused on the newer growth.