GMSgrowsanswered grow question 4 years ago Shouldn't use organic in hydro. DNF nutes works great for hydroponic grows it was made specifically for water grows. Very clean clear nutes, keeps crap from starting in rez. Your baby dont look to bad just get the organic crap out of there. You wont need cal/mg growing hydroponically. You really only need that for coco grows. Get your water temp down to 68 min.