Is this nute burn? It was just on one or two leaves but is now spreading to all of my plants? I already posted once but there was not much help so I'm trying again. I have flushed with ph balanced water and and watering with ph balanced water for 36 hours or more and the problem is NOT improving. Should I continue on my current course?
I could take more pictures if needed but they all look just like this.
Thanks
o/
Tieme