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Non Nitrate Ratio?

Discussion in 'Advanced Strategies and Fertilization' started by derekparr, May 23, 2005.

  1. derekparr

    derekparr Junior Poster

    Jan 23, 2005
    Likes Received:
    So.. I've increased the amount and how often I dose nitrates and phosphates beyond the standard suggested PMDD level to the IE level. Plants are doing well. etc. etc.
    But, I was wondering, should I be increasing the levels of the other ingredients of the PMDD to keep the same ratio with my current nitrate dosing? Or does it not work that way? When I say "other ingredients" I primarily mean "MgSO4+7H2O" and "K2SO4".
    Thanks for the help.
  2. Tom Barr

    Tom Barr Founder
    Staff Member Administrator Social Group Admin

    Jan 23, 2005
    Likes Received:
    Re: Non Nitrate Ratio?

    Not K2SO4, it's not needed for the K+, you get enough from KNO3.

    Mg is not needed nearly as much, you can add it once a week, after the water change if you your Gh is low or if you know for a fact that the Mg is low in the tap etc. Generally 1/8 teaspoon MgSO4 once a week per 20 gal should be plenty.

    Tom Barr

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