Sulphate levels

Discussion in 'Aquarium Fert Dosing' started by swackett, 9 Jun 2017.

  1. swackett

    swackett Member

    Joined:
    29 May 2008
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    439
    Location:
    Epsom, Surrey
    Just wondering if you can have too much sulphate in an aquarium and is it harmful to fish?

    I dose mgso4 and am thinking of dosing k2so4 as well, and so will be adding lots of sulphate (so4) to the tank water.

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  2. zozo

    zozo Member

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    16 Apr 2015
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    Location:
    Netherlands
    You need a pretty high dose for it to be harmfull.. I've red reports from natural streams having 275ppm during the spring time flooding from snow meltwater. So even nature can periodicaly take some pretty high levels.. In trout farming sulphate levels are aimed to stay bellow 75ppm. I have no idea what the symptoms are when it's higher, if fish die or just not spawn healthy.. But to get this high with adding pottasium or magnesium sulphate you would need to add quite a lot, which you likely wont.. :)
     
  3. swackett

    swackett Member

    Joined:
    29 May 2008
    Messages:
    439
    Location:
    Epsom, Surrey
    Okay I am looking at levels of 20ppm or so, so it sounds pretty safe at that level then.
     

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