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High KH and Discus

Discussion in 'Advanced Strategies and Fertilization' started by imatrout, Sep 18, 2005.

  1. imatrout

    imatrout Prolific Poster

    Apr 4, 2005
    Likes Received:
    I have just started to raise Discus and am learning a lot about them My tank has pressurized CO2, but my KH is high (10.5) I want to give the discus a PH environment of 6.5, but doing that with my KH induces way too much CO2. My question is: Is there any non-phosphate way (additive) of lowering my KH without resorting to RO water? Ideally I'd like to get my KH down to 6-7.

    Thanks all.
  2. Tom Barr

    Tom Barr Founder
    Staff Member Administrator Social Group Admin

    Jan 23, 2005
    Likes Received:
    Re: High KH and Discus

    RO is the easiest method to reduce KH.
    I'd shoot for 4-5KH or so.

    Tom Barr
  3. Spar

    Spar Guru Class Expert

    Jun 5, 2005
    Likes Received:
    Re: High KH and Discus

    peat moss in your filter will help out the lowering of pH significantly. there isn't an exact science to the quantity needed, but just start low and keep adding as necessary.

    it will also give some tanics to the water which will help the Discus feel at home better too. win/win.

    There is a local breeder here in Dallas (actually Fort Worth I think) that breeds discus successfully in high GH and KH water. 8.2 pH. So not sure how necessary the lowering of pH is in the big picture. You will want RO water for the eggs and fry anyway, so may be worth investing in a RO unit.

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