Hi. So, I've been looking at ppl who use GHF. As I'm moving into it. So, a few things I want to ask you.
Why are you using no Grow for your 1st few weeks? You are stalling your plants and enhibiting their grow with the lack of N and too much p-k too early in the stage of growth.
You'd be best if you don't have growth leaving any high P-K ratio out and just let your autos grow 4 weeks in soil their is enough for veg. You do not need to be giving them any bloom at this stage of photosynthesis.
And the Question you picked is not good advice. I top autos but you need to get it in at least 2 weeks before pre flower starts. I leave it no later than day 15 or at the 1st sign of the 6th node popping up take it above the 4th or 5th.. but a lot of ppl will tell you there is not enough veg time left to top an auto. And I'm tending to agree. Or I will or won't have I run my next round of autos as I won't be topping but I can't see them been better (non topped autos) as I've been pulling 40-120g off topped autos so. Anyways good luck with your grows.
Good luck.
like 1