First time Green Gelato with my-lar tent

It was last week and time to flush. About 50% tricomes were turn milky begin of week. End of the week about 70% was turn milky, not amber colour visible. I shortened the light cycle for the first 3 days by 11 hours, the next two days by 10 hours and the last 2 days without lights. I water PH-balanced tap-water with Final Solution. And I water from above. I stopped watering 2 days before harvest. And then day 7 I cut them all same time. I clean tent after rare cut ang hang and then I throw away root cubes. 1 of four was much smaller than others. This plant #2 roots were week, about halv of the others. And plant #1 root cube was full of roots but smell was turn rotten and looks brown - maybe reason for yellow leaves. Plant #3 was also yellow but roots were strong, was little brown roots and no rotten smell. Plant #4 was until end really green and healty and buds was big and strong, roots looks healty and strong. Let me quess the reasons - first I think I over feed N - too much and too long time. Second - my cal-mag was organic - i think mineral fertilize fit better auto-pot system. Third - I forget follow PH - level in critical flower weeks 1-3 when i change light period, and fertilize period and I defoliation and torture plants more or less, and should remember that before defoliation should reduces the amount of fertilizers..what I did not. And last - I had long periods that day temperature was above 30 degree - but what can do if uotside is nice weather. It was a very educational time and thank you very much to everyone who participated in my first grow since studying over 25 years ago 👌. Head up for new adventures 😎 Of Course This IS Flower week 15.