When should I stop using grow big

I am in the third week of flower should I continue with the grow big with the tiger bloom

Continue the grow big for two more weeks at full dose, then you can gradually come down in dose until you stop it.

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thank you

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really you want to be tapered down almost to nothing on the grow big by now and doing extra tiger boom right now I grow big is a six four four and you want something with more P&K and less nitrogen at this point you look like you’re about two and a half weeks into flower or two weeks of flower showing you want to get rid of nitrogen almost completely right now to avoid airiness between your buds you’re going to have a lot of fluff if you don’t tighten up your notes and prevent anymore stretch you plant needs to start stacking so I’d cut N out or down alot