Reading an API test

Discussion in 'Reef Fishes' started by sen5241b, Apr 10, 2009.

  1. sen5241b

    sen5241b

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    I've been getting some false readings lately from a bad test kit. When I read an API test kit I

    I add precisely the amount of water the instructions say to
    Add precisely the number of solution drops
    Hold the test tube result against the plastic color card under bright white light.

    In darker light, the result color can look very different.
     
    sen5241b, Apr 10, 2009
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  2. sen5241b

    yote Ceritfied Mantis Hunter Moderator

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    Thats why I dont use the kits with the color charts.Well,except for the nitrate,and I know if it changes colors at all,then I need to do a water change.
     
    yote, Apr 10, 2009
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  3. sen5241b

    ccCapt Reef Hacker Moderator

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    The only API test kit I use is copper. Put the vial on the white part of the card next to the color chart and look straight down into the vial. Lighting shouldn't make that much of a difference. It will change the "look" of the color in the vial the same as the color on the color chart.

    Try Salifert instead of API. They are much more accurate and easier to read.
     
    ccCapt, Apr 10, 2009
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  4. sen5241b

    biodarwin

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    The only API test kit I have a problem with is the pH test. Its the one test I feel is pretty worthless. I use API for calcium, alkalinity, phosphate, nitrates on a pretty routine basis and have no complaints.
     
    biodarwin, Apr 10, 2009
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  5. sen5241b

    JAG107

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    API's calcium test I found to be the only reliably accurate one. I would sometimes get 40, 80, or 0 nitrate readings...all in the same day, with the same technique.The alk test was reading low for me, albeit the test kit was I think too old at the time. I now use salifert for everything except alk, for which I use Lamotte. I find Lamotte's test to be quite good and easy to use.
     
    JAG107, Apr 11, 2009
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  6. sen5241b

    dustin_P74

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    im not a fan of lamotte test kits, i use salifert for phosphate and elos for calcium, alk, mag and nitrate
     
    dustin_P74, Apr 11, 2009
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