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CA and MG (part II)

Discussion in 'Advanced Strategies and Fertilization' started by Simpte, Sep 27, 2005.

  1. Simpte

    Simpte Prolific Poster

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    Is it possible to have a ca and or mg defficiency gh above 4?
     
  2. matpat

    matpat Prolific Poster

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    Re: CA and MG (part II)

    I would assume so since GH is made up of either calcium, magnesium, or both. Someone on APC had a Mg deficiency with a high GH. His tap water was almost all Ca and no Mg. Dayton's Comprehensive Water Quality Report lists 28ppm of Ca and 19ppm of Mg.

    If you would like, bring over a sample of your tank water and we can run a Ca test on it. From there we can figure out the Mg content. When Tom was here, he did mention that I could probably use a little more Mg in my tanks in the basement!
     
  3. Tom Barr

    Tom Barr Founder
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    Re: CA and MG (part II)

    It has never been seen yet, but an all Mg GH hardness is extremely rare.

    So adding MgSO4 if you have a higher GH than say 3-5 etc is about the only thing you'd ever need to add to rule out a Mg or GH issue.

    Regards,
    Tom Barr
     
  4. Simpte

    Simpte Prolific Poster

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    Re: CA and MG (part II)

    I will try to get over there today. I'll call first so I don't get attacked by the big guard dog you have :)
     
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