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Thread: Effects of Dennerle OsmoseMineral+ on water values

  1. #1

    Effects of Dennerle OsmoseMineral+ on water values

    Hello everyone,

    I'm currently in the progress of adding osmose water to my tank and I have a question about the minerals that I should or shoudn't add.

    The last three weeks I've been adding a mix of osmose-tapwater with the following aiming values: Kh: 4, Ph 6.6.

    However, since the mix is (on a 10L bucket) about 8.75l osmose and 1.25l tap, I'm wondering if I need to add minerals to the water.

    I've been looking in to some mineral enrichment products and found this one.

    Now my big question is: what will these minerals do to my watervalues (Kh, Gh and Ph)? I can't make it up from the item description.

    My current values are:
    Ph: 6.6
    Kh: 4
    Gh: 5
    Po4: 0.6
    No3: 5

    Thanks in advance for the responds.

    Greets
    Ruben

  2. #2
    Join Date
    Jul 2009
    Location
    The Netherlands
    Posts
    2,280
    Hi Ruben,

    Adding minerals will raise KH and GH again. You can calculate if you need it by reviewing the amount of Ca and Mg in the tapwater. As you are adding 12% of tap, consequently you will add 12% of the Ca. and Mg. in the tapwater. I think it's kind of low. Why buying a mineral addition if you can do the same with using a more even mix of osmosis- and tapwater?
    regards,
    dutchy.

    My 2011, 2012 and 2013 AGA aquascaping contest entries:
    http://www.barrreport.com/album.php?u=21013

  3. #3
    yup, check the tapwater for Ca en Mg.

    greets,

    yme

    ps: lekker biertje!

  4. #4
    Since I don't have any tests to measure the Ca or Mg, I'll have to do with the measurements given by the watercompany.

    According to them, 1L contains 14.6mg Mg and 117mg Ca.
    In other words in my current tap-osmose mix i would be adding 2.19mg Mg and 17.55mg Ca.

    What do you guys think about those values?

    Regards
    Ruben

  5. #5
    Join Date
    Jul 2009
    Location
    The Netherlands
    Posts
    2,280
    Ca. seems to be ok, but Mg. is kind of low. You could just add another 3 ppm of MgSO4, which is cheap and doesn't affect GH that much.
    regards,
    dutchy.

    My 2011, 2012 and 2013 AGA aquascaping contest entries:
    http://www.barrreport.com/album.php?u=21013

  6. #6
    Quote Originally Posted by dutchy View Post
    Ca. seems to be ok, but Mg. is kind of low. You could just add another 3 ppm of MgSO4, which is cheap and doesn't affect GH that much.
    When you say to add 3ppm that means that I should aim for 18mg Mg right?

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