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Shrimp And Trace Elements

Discussion in 'Inverts' started by azappetti, May 31, 2018.

  1. azappetti

    azappetti New Member

    Dec 3, 2017
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    Local Time:
    12:08 AM
    When adding trace elements, what is the maximum dose of Cu and Fe, to avoid the toxisity of shrimps?
  2. Allwissend

    Allwissend Article Editor
    Staff Member Lifetime Member Article Editor

    Jun 20, 2016
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    Local Time:
    5:08 AM
    You're not gonna like this but ... depends.
    It depends on 3 things
    1. uptake (plant, microbial )
    2. precipitation (precipitated Cu will not be toxic anymore)
    3. organics and chelators (they often make metals less toxic)

    So adding a single dose of 0.07 mg/L Cu once a week is not the same as adding 0.01mg/L Cu 7 times a week. I had one aquarium with breeding RCS where I was adding 0.01mg/L Cu daily and I did not notice any problems but the tank was high light with a very high plant density. It was overkill when you compare the Thrive+ weekly dose of 0.0126. But you can make an idea...

    Regarding iron, I would not worry about it, you can offer the plants all they need (0.5-1mg/L Fe) and not be toxic towards most shrimps.

    PS. All of the above is with 50% weekly water changes and routine cleaning of the substrate.
    KeeperOfASilentWorld likes this.

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