well my three started going yellow in the 7th week of flower,yet all my other plants were fine and healthy.was just curious if thats the way it finishes?
Max ive got the exact same problem here, same results on runoff. what got my attention was ive got 3 nirvana ice in there on there 7th week of flower and there starting to yellow midplant yet the 22 other plants other than ice are perfect. so i tested like you did and found the same results...