pH has been hard to get into control due to the return of the pythium, it keeps dropping due to the dead organic matter. Not much to do other than keep the environmentals correct and hang on!
Hi friend, when you add your nutrients do you supplement PK or CalMag? In hydro if you ask me it's a must no matter what base nutrients brand you use...the burned leaves look a lot like PK deficiency π€
@Ringo, LED fixtures tend to excrete from the plant the Cal-Mag also for DWC it's a must. My Guru i observe on the YT always stresses the importance of supplementing PK in flower stage...before I used only Cal-Mag but since I also use PK my plants look much better.