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Manganese Deficiency

Discussion in 'Aquatic Plant Fertilization' started by Sepp0207, Jul 5, 2020.

  1. Sepp0207

    Sepp0207 New Member

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    Hey guys,

    i have manganese deficiency in my tank. I sent several water samples to a laboratory. The result was always high levels of iron and nearly no manganese. Any ideas where all the manganese disappears?

    I use Tropica Soil and Tropica Premium. I have two big filter filled with pumice. Light ist T5 6x80watt.
    3 osram 840 und 3 osram 865.
    I have 30-40 ppm co2. Kh ist abaout 0,5 and ph around 5,7.

    It ist very strange. I lose nearly all of the manganese in the tank. Can soil absorb more manganese than the other micros? Can pumice absorb manganese? I am thankful for every idea.

    Greetings.
    Sebastian
     
    #1 Sepp0207, Jul 5, 2020
  2. aclaar877

    aclaar877 Junior Poster

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    Where did you get your water tested? I, along with at least two others used ICP analysis out of Colorado, and each of us got a reading of 0.00 ppm manganese, and we each had been dosing it. In my case I got 0.06 ppm Fe, and with the ratios I was using, should have had about 0.015 Mn. If you are dosing reasonable levels then you should be OK for Mn.
     
    #2 aclaar877, Jul 7, 2020
  3. calvin doss

    calvin doss Lifetime Member
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    I suggest a control sample with only water and fertilizers.
     
    #3 calvin doss, Jul 11, 2020
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