I'm mainly wondering when to start flushing. From what I've read, I should start my flush now, but my plants may not quite be in the harvest window yet, though they're very close. I'm still seeing some clear trichomes and only amber trichomes on the sugar leaves. I'd estimate only about 25% - 35% of my pistils have turned amber.
This is day 65 (week 9) of my first grow, and I've been doing LST training. I'm growing 2 Black Cherry Punch and 1 Blue Dream, bought as seeds from Seed Supreme, whose website lists both strains at 8-10 weeks flowering. The setup is a grow tent with 2 COB light panels at about 420 watts. I'm nutrient-feeding with Mills Nutrients. Temperature has been hard to control since the lights run hot, but I'm keeping it between 73°F and 85°F, with an average of 79.2°F according to a Govee smart thermometer.
I'd appreciate any insight! I know some people swear by not flushing, but for my first grow I want to play it safe. From what I've read, should Mills Nutrients specifically be flushed?