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Mag for hair algae


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  1. #1
    CR Member
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    Sep 2010
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    Mark

    Default Mag for hair algae

    I have a few small spots of hair algae on a few rocks that keeps coming back. I want to try raising my magnesium level to get rid of it.
    Problem is that my Salifert mag kit only reads to 1500 ppm and I think I need to get to at least 1600 ppm.

    What does the mag need to be to kill off the hair algae.?
    I have sps, lps, and some soft corals, what is a safe level for them?

    I skipped Chemestry in school, but it seems like each 0.02 of the Mg3 reagent added equals 30 ppm.
    So I can add additional MG3, using a second syring full, to read the total ppm right?

    Please let me know if you have done this successfully, as I don't want to kill of anything to get rid of a little hair algae.

    Thanks

  2. #2

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    Manoj
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    Default

    I dont think increasing mag kills hair algae.
    The increase in mag is for byropsis.
    Tech M magnesium is used for this and its not the magnesium that kills it but an other chemical in the solution kills it.
    I think from the salifert test kit readings you can extrapolate the value of mag higher than 1500
    Maintaining it at 1700 ppm helps getting rid of the byropsis

  3. #3
    Sir Patrick - Reefkeeper A2 Club Coordinator
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    Chris
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    Default

    ^ Agreed!

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