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Sources of calcium carbonate

Discussion in 'Aquatic Plant Fertilization' started by Carissa, Jun 11, 2007.

  1. Carissa

    Carissa Guru Class Expert

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    Hi,
    I'm just learning about how to properly fertilize plants. Seeing as how my water is extremely soft with no KH or GH, I need to add calcium and magnesium besides other fertilizers. I know I can use epsom salts to get magnesium, and baking soda to add carbonates, but what would be a good way to provide calcium? Is regular white chalk pure enough to crush and use? Or are there other easily accessible sources?
     
    #1 Carissa, Jun 11, 2007
  2. Tom Barr

    Tom Barr Founder
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    Caclium sulfate works better: gypsum

    Or you can buy the GH booster from Alan: aquariumfertilizer/com

    Regards,
    Tom Barr
     
    #2 Tom Barr, Jun 11, 2007
  3. dealt

    dealt Prolific Poster

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    It seems like GH booster is often recommended. If it's not available, can magnesium sulfate, calcium sulfate and baking soda be an alternative? If yes, how much of each should be dosed for a 50g? Thanks!
     
    #3 dealt, Nov 14, 2007
  4. tcomfort

    tcomfort Junior Poster

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    Remember that baking soda is a KH Booster, not a GH Booster. ;)
     
    #4 tcomfort, Nov 14, 2007
  5. dannyfish

    dannyfish Prolific Poster

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    i tried using calcium carbonate and my tank become cloudy....
    is it normal?
     
    #5 dannyfish, Aug 13, 2010
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