I've grown dwc for a couple years, but I don't break it down like a lot of guys do. I've not had problems, except with feeding. Then I was turned onto the Lucas formula and I've not had problems since.@Hollatchaboy do you know a lot about DWC/hydro?? Plant was a clone and was fine for 3 years and went bad with the above issues.. Other plants in other tents having higher ph issues that get stuck at 6.3 and won't come down, but still drink and turn out fine... Why else you a plant stop drinking all of a sudden??? Like I said this plant is about a foot tall from clone and pulled this act of not drinking.
Your plant isn't drinking, so the ec stays the same also?