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  1. Y

    PH vs EC/PPM interaction

    Finally got hold of a second hand bluelab truncheon meter (big sucker). When I tested my AG it was off the chart. I dumped the rez, and filled back up with tap water that is bit high on alkaline side, 6.7-6.8. Although the EC was very low, as I started to try and bring the PH down, the EC...
  2. Y

    Is this nutrient burn or something else,?

    Hi, this is my first AG grow, started getting brown tips on the leaves, after some research I thought possibly nutrient burn, so I flushed with some fresh tap water, and as usual brought the PH down using some fish ph down powder, now these strange white spots have started to appear, any help...
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