Wobster, the issue being asked about is pH, not TDS/PPM. I was aware of this but I don't think you were.
Weedhound, you told Blizzin in another thread to drop his ppm to around 600 from 1200. That will kill his plants, yet you pass around this bad information freely. Perhaps you're the one who is mistaken? Watch pH in a hydro grow, but what I was saying was don't try to fight it too much. Even some of you who say that nalani's plants look good must be saying something about the pH. Nalani says it raises and they can't keep it down, and you folks tell her to watch the pH closely but the plants look good. Makes no sense.
With people in these forums it's always pH nute lockout here and pH nute lockout there. I don't get it. You just end up chasing one problem after another.
polishpollack Reviewed by polishpollack on . pH in hydroponics (auto-drip coco)??? I recently got my plants a hydroponic system, but keeping the pH level in it at 5.5 - 6.0 is really difficult. The water with nutrients in it is at about 6.8, and then we add "GHE pH down" which lowers it to 5.5 - 6.0. But after a few hours its back to 6.5. Could the problem be that the plants are eating up the nutrients and leaving the pH closer to clean water pH? :P And should i just leave the pH at 6.5 ? Oh btw, plants are just about 10cm tall, growing a bit slow compared to what i'm Rating: 5