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Alkalinity Kits…

By admin ⋅ December 12, 2007 ⋅ Email This Post Email This Post ⋅ Print This Post Print This Post ⋅ Post a comment
  • LaMotte - 116ppm = 2.32 meq/l = 6.5 dkH
  • LaMotte - 112ppm = 2.24 meq/l = 6.2 dkH
  • LaMotte - 116ppm = 2.32 meq/l = 6.5 dkH

  • SeaChem Test 1 - 7 drops / 2 = meq/l = 3.5 meq/l = 9.8 dKH / 175ppm
  • SeaChem Test 2 - 6 drops / 2 = meq/l = 3.0 meq/l = 8.4 dKH / 150ppm
  • SeaChem Test 3 - 6 drops / 2 = meq/l = 3.0 meq/l = 8.4 dKH / 150ppm
  • SeaChem Test 4 - 6 drops / 2 = meq/l = 3.0 meq/l = 8.4 dKH / 150ppm

  • SeaChem Ref #1 - 12 drop / 2 = meq/l = 6.0 meq/l = 16.8 dKH / 300ppm
  • SeaChem Ref #2 - 12 drop / 2 = meq/l = 6.0 meq/l = 16.8 dKH / 300ppm
  • SeaChem Ref #3 - 11 drop / 2 = meq/l = 5.5 meq/l = 15.4 dKH / 275ppm

    • Please note, SeaChem reference is supposed to be 4 meq/L, or 8 drops…

    The round with LaMotte is more in line with where my tank usually is, 6.5 - 7.5 dKH. I ran out of ELOS, and will be ordering one as soon as I post this, and I will try and pick up an API if I have time tomorrow. By default, I trust LaMotte more than SeaChem, but hard to say which may be off without a 3rd kit - though that SeaChem’s reference doesn’t even match what it should be, may be a good indicator of bunk. I don’t know how they want you to pull uniform samples with that dinky little straw…. I’ll try again when I have a 3rd kit.

    It should also be noted, so it doesn’t seem like I’m totally hating on SeaChem’s kits…

    Magnesium Test Results

  • Salifert - 1380
  • SeaChem - 1375
  • ELOS ~ 1400 (only does 100ppm resolution unless you double).
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    Discussion

    2 comments for “Alkalinity Kits…”

    1. So, revisiting this post, it should be known that I think I had a bunk kit - maybe too long on shelf, who knows. I’ve since purchased another SeaChem kH kit in a pinch, and it does match up with other kH test kits.

      I do however stand by the decision that their calcium kit sucks, and the Mg kit, though accurate, is a total pain in the ass to use.

      Posted by admin | April 4, 2008, 8:06 pm

    2. [...] kit reads for me. I’m not a huge fan of SeaChem’s kits in general, either based on past use with other kits, or just the whole thing with the little tray, but this result with the iodine was nice too [...]

      Posted by Cum grano salis… a big grano… | StonyReef.com | Reef Aquarium Blog | April 4, 2008, 8:43 pm

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