Definitely nute burn. Its on the tips of all of the leaves. Must be some powerful soil. Week 9 of flower? Have you started your flush yet? If not, I would. They will really start to turn brown as they use up the nutes. Good growing.
Definitely nute burn. Its on the tips of all of the leaves. Must be some powerful soil. Week 9 of flower? Have you started your flush yet? If not, I would. They will really start to turn brown as they use up the nutes. Good growing.