I guess there are several ways of doing hydro...I tried DWC and had trouble immediately...Never could figure out what I was doing wrong...I switched to a feed, drain and recycle in coco chips and it worked...it’s still hydro but it works for me...I usually feed and drain 3 times per day...I use a very simple feeding setup...A dry nute called MegaCrop and nothing else...mixed according to bag instructions or maybe a little stronger toward flowering and I’ve never burned a plant...may not work for everybody but it works for me...the ph of my water is pretty neutral and after adding nutes it’s right around 6...