yellowing in my new growth

jollytime

Well-Known Member
I am getting some yellowing in my tops, not all of them. I happen to have 4 large plants in one 24 incn pot (20 inches tall) each hase 1/2inch stalks. It the strongest plant I have ever grown. I have been giving it GH nuts like my in door plants. What am I laking in?
 
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