I think I came up with a possible issue. I used a new 15 gallon bucket to dechlorinate as I assumed it would be easier than my previous 5 gallon buckets. either the water wasn't dechlorinated properly. or the bucket still held some kind of chemical which killed my precious microbacterial life.
gonna pump her full of synthetic nutes(jacks classic bloom) till I see some tip burn. then back off.
Glad to see you figured out the problem and the plant is recovering. I actually recently ran into a similar problem; the membrane on my RO system failed and I unknowingly was giving my plants chlorinated water @ 400PPM with 21% of the PPM being sodium 🙄 ... My plants looked similar to the one you show with damage. It's crazy the damage tap water can do to these plants.
😒 I Wish my garden looked like that lol .. Great job @Gilan Eugene ... I'm super jealous! 👍