I'm constantly battling ph issues with my water. Going back to 100% RO for the summer, spring/summer is when my water is at its worst.
Yes, I believe these ducks are much more sensitive to ph issues. At least thats what appears to be the issue. BUT, these plants don't die easy! Completely new growth has sprung from the main stem and the tops.... damn crazy plants lol! Once I'm sure I have my seeds crop well on its way, I'll plant several of the seed I bought in the greenhouse to grow for bud!