GMSgrowsanswered grow question 3 years ago When you start with bloom nutes you should start with a lower ppm around 1.5 ec 750 ppm. You should stay in veg ph range until flowers start. Going over 800 ppm 1.6 ec can be detrimental to your girls especially in preflower. Less is best. Underfeed and still get big bud., overfeed and you will see pistols start browning to early and your bud will not reach their potential. Cheers