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  1. #1
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    ICP for my 70 gallon

    Too much calcium oh my. I have to really large clams. Is it that bad?



    testResult_ryanniles_20180929180827.pdf

    shared-widget-1538246254093.jpg



    ICP-ANALYSIS.COM
    70 gallon - 70 Gallons Test 2018-09-23

    first column, my tank, second reference
    Silver 0.00 ppm 0.00 ppm
    Aluminum 0.05 ppm 0.05 ppm
    Arsenic 0.02 ppm 0.01 ppm
    Boron 4.63 ppm 4.57 ppm
    Barium 0.03 ppm 0.00 ppm
    Beryllium 0.00 ppm 0.00 ppm
    Bromine 54.73 ppm 51.35 ppm
    Calcium 487.28 ppm 397.67 ppm
    Cadmium 0.00 ppm 0.00 ppm
    Cerium 0.00 ppm 0.00 ppm
    Chlorine 19264.21 ppm 18427.15 ppm
    Cobalt 0.01 ppm 0.01 ppm
    Chromium 0.02 ppm 0.02 ppm
    Copper 0.00 ppm 0.00 ppm
    Iron 0.00 ppm 0.00 ppm
    Gallium 0.02 ppm 0.01 ppm
    Iodine 0.05 ppm 0.04 ppm
    Potassium 398.27 ppm 384.69 ppm
    Lanthanum 0.01 ppm 0.01 ppm
    Lithium 0.20 ppm 0.18 ppm
    Magnesium 1423.17 ppm 1239.34 ppm
    Manganese 0.00 ppm 0.00 ppm
    Molybdenum 0.01 ppm 0.01 ppm
    Sodium 10602.65 ppm 10505.98 ppm
    Nickel 0.01 ppm 0.01 ppm
    Phosphorus 0.07 ppm 0.05 ppm
    Lead 0.01 ppm 0.01 ppm
    Rubidium 0.00 ppm 0.00 ppm
    Sulfur 869.02 ppm 834.73 ppm
    Antimony 0.00 ppm 0.01 ppm
    Selenium 0.00 ppm 0.00 ppm
    Silicon 0.00 ppm 0.00 ppm
    Tin 0.01 ppm 0.01 ppm
    Strontium 7.72 ppm 7.47 ppm
    Titanium 0.00 ppm 0.00 ppm
    Thallium 0.00 ppm 0.00 ppm
    Uranium 0.03 ppm 0.02 ppm
    Vanadium 0.00 ppm 0.00 ppm
    Tungsten 0.01 ppm 0.01 ppm
    Zinc 0.00 ppm 0.00 ppm

  2. #2
    Supporting Member frankc's Avatar
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    I don't think that much calcium will hurt anything, and with 2 large clams it will be down soon.

  3. #3
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    It's more about the alkalinity/calcium ratio IMO. No, calcium that high shouldn't hurt anything and you are obviously dosing to get it that high. Just trim back on your doser and let it come down gradually on its own. Depending on where you like to keep your Alk should tell you where your calcium should be. If you keep your alk at 9 dKh, then the ideal Ca is 425 ppm. If you keep your alk at 10, your Ca should be 432 ppm. Its best to strive for that ratio. Your clams can't utilize the extra calcium without the extra alkalinity. It is costumed in a ratio to build their shells. To have the proper ratio with Ca at 487, your alk would need to be 17. Obviously too high.

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