The plant grow slowly, added a bit of earth around it to help her stand even if she was doing good. Started with some leftover nutrients from last grow. Then in flo it’s going to be Advanced Nutrients products.
Hey bro,
I have the same problem on my plants {one strain good, the other one (more sativa) burned}. I agree the answer of my growmies, but for me it's a mistake to cut the leaves "infected" before you see the real improvement of you plant health (after flushing)
Wait a stabilisation, and at this moment, cut the dead leaves ;)
Why ? Because if the problem is not solved, you will kill all the new leaves, the plant need a way to eject the waste of nutrients.