Sorry, for 1 day late update i really busy lately. this week, my girls grow nicely with PPM 300 and Ph 5.8 but ph keep going up every day so i have to fix Ph every day. After my girls a little leggy in week 0 i do 20/4 for light with 60% (6plant per 600w light) until today. i change the light to 18/6 since they stop leggy and healthy grow. Hope you guys enjoy it Happy grow everyone! 💪💪💪