First photoperiod grow

They grew nicely, until at day 25 I´ve registered something is not right. I was giving them half dose of mills nutrients all time, and also all time I´ve watered them one with nutrient, once without nutrients just water, and like this all cycle. So I´ve checked runoff and it was waaay higher PH that I´d like, PH 7.0. So when I was watering only water I´ve adjusted PH of that water to 6.0 and for Lemon Orange PH 5.8. I didn´t liked the way panty punch and MAC & crack were growing, so I did some LST. At day 27 I did some defoliation inside of plants, cutted of some little branches and leaves that were completely withou light so the plants wouldn´t waste their energy on those. On that day I´ve done some leaf tucking too. -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Growing conditions: Lux: 37 000 - 40 000 Temperature (day): 25-26°C Temperature (night): 20-22°C RH: 60-65% Light distance: 52cm Light intensity: 80% EC: 1.200 Watered every 4 days. (with nutrients, just water, with nutrients, water, ...)