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soil ph

  1. Muddy

    Grow Mediums Pro Mix HP Update

    I've been growing with Pro Mix HP for years now with excellent results. Recently I've noticed a change in their mix. Previously I've been adding Aluminum Sulfate at the rate of 3 grams per gallon to my mix to lower the starting pH of the Pro Mix. I had a grow where my soil pH was dropping...
    • Muddy
    • Thread
    • aluminum sulfate pro mix hp soil ph
    • Replies: 0
    • Forum: Archives
  2. Kels59

    New Grower Testing with CWP pH8 soil meter - what do I need to know?

    Oh wise AFN canna gurus, I need some enlightenment. I just got my CWP pH8 soil meter. I have started testing soil in 3 of our girls so far (have a few more to test) about mid way down and all the way down and in 3-4 different locations in their airpots. We grow in FF Ocean Forest which is said...
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