Then I would def say it is nut burn then. You could run a lower nut solution to see if that helps if not I would try using just spring water for a couple of days. Should clean it right up.
Then I would def say it is nut burn then. You could run a lower nut solution to see if that helps if not I would try using just spring water for a couple of days. Should clean it right up.
I got 5 T5 HO and they where about 8" above its didn't seem like heat stress but after I raised it to 20" n they really started going. Check my grow u'll see the differents