Forbidden runts 420 fastbuds

Sorry for late week Shorter plant is getting 1200ppm topoffs daily for last week where taller is only getting water topoff as its near ntoxd . Girls both drink 3/4 to 1 gal a day of water and ph rises from 5.5 to 6 0. They are loving life. Swapped out the ts1000 on one of them to a ts2000 . May add in more lower lighting as plants are so tall. 40to45dli to tops tapers to 25 at lowers . Did my last big defol also. So many light blockers but not going to overstress it👌