I’ve not grown in a while but, you should look into wet/dry cycles. Your roots are where the magic happens. Let them dry out longer between your waterings so the roots can breath. And they look hungry!
You shouldn’t need a intake fan or not much of one. The exhaust will pull air through the intake and any leaks(when tent is closed) to ensure EVERYTHING coming out, gets pulled through the filter. You want the sides of your tent sucked in a bit, play with the opening to regulate airflow. Your...
I’ve grown the GC, from fast buds. It produced pistols 16 days after breaking ground! I liked it the best of that run, nice auto smoke! Keep a close eye out, if they’re gonna flower they should be throwing signs out!
How long have they been flowering?
I’m guessing they’ve got another good swell to go but have been smoking some "strange" & feel pretty optimistic!:bigjoint:
Edited to say: Nice looking buds!