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Is SeaChem iron test kit any good

Discussion in 'Aquatic Plant Fertilization' started by tiger15, Oct 2, 2017.

  1. tiger15

    tiger15 Member

    Aug 12, 2017
    Likes Received:
    Local Time:
    5:34 PM
    I bought a SeaChem iron test kit to check my iron level. My tap water has very low iron level, so I don't expect to detect any iron in tap. My dosage rate of Gluc Fe from Flourish is about 0.056 ppm and DTPA Fe about 0.2 ppm, but I did not detect any level of Fe in samples collected 5 min after dosing.

    Is SeaChem test kit not working with chelated iron so I'm getting false negative, or my plants scoop up all iron instantly, or some reactions in my tank water that precipitate iron out of solution.

    In fact, have never detected any level of iron with SeaChem test kit except when I dropped a few grains of FeSO4 into the test tube. So is SeaChem test kit any good or something wrong with my testing.
  2. burr740

    burr740 Micros Spiller
    Staff Member Moderator

    Feb 16, 2015
    Likes Received:
    Local Time:
    4:34 PM
    Most hobby level Fe tests are no good. They either read Fe that's in a state unavailable to plants, or they dont read what Fe is there.

    I dont remember exactly why, maybe someone else can explain it. Either way you cant trust them.

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