ColoradoLove
Well-Known Member
Dude 6.5 is not a high ph, 650ppm is not high either. Those plants look to be in good health... deep breaths
They definitely looked nice and green to me too, except for the lower leaves, but it happens. It's kind of a "squint and tilt your head just so" type of deal, to see a problem, if any.I don't think you have toxicity of any kind, especially not at 650ppm. How old are those plants?