Hello guys, hope you are all doing well. I have a Scrog of Super Critical under a Mars TS2000 in 4th week since switching to 1212. One of the plants started to get brownish, bronze sugar leafes on top of the plant. They seem really dry, if I bend a leafe, it breaks. The tips of the leafes point upwards. It is starting from the middle of the leaf. It shows no other signs of overfeeding and I gave all of them the same amount of Canna Terra Fertilizer from the beginning on at a ph always around 6,8. I did find nothing similar to this, except Boron defficiency maybe? Increase the fose or flush? Can anyone please help me? Kind regards