Tested potassium today to find it down at 320

Discussion in 'Reef Chemistry by Randy Holmes-Farley' started by rock_lobster, Jan 1, 2018.

  1. rock_lobster

    rock_lobster Valuable Member R2R Supporter

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    yep thats exactly right! and my salinity stays in check from sharing frags and toping off mostly with RODI(occasionally adding a little reefcrystals). So I am losing all those elements over time except NaCL. Im dosing 3dkh per day into my tank according to BRS carbonate calculator.
     
    Last edited: Jan 2, 2018

  2. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Article Contributor Expert Contributor

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    OK, so the potassium decline might be from that alone. :)
     
  3. rock_lobster

    rock_lobster Valuable Member R2R Supporter

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    Yes I expect so. Maybe not much from utilization at all. Judging by how much I am losing I assume the other trace minerals are probably pretty well depleted but I have never had any ill effects the only thing is from potassium, I notice I start to lose color in my sps. Only other thing I test and dose is iodine.
     
  4. Mattrg02

    Mattrg02 Valuable Member

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    Anyone tried using potassium metal? :)
     
  5. rock_lobster

    rock_lobster Valuable Member R2R Supporter

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    Potassium? Or KOH. I already dose NaOH as well so I’m sure you could use KOH if you calculated it appropriately.
     
  6. Mattrg02

    Mattrg02 Valuable Member

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    No, potassium metal. Ought to give you the biggest bang for you buck. Biggest bang anyways. :)
     
  7. rock_lobster

    rock_lobster Valuable Member R2R Supporter

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    Cost wise? It’s hardly worth bothering. 5$ Of KCl will last about 10 years.
     
  8. Mattrg02

    Mattrg02 Valuable Member

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    Yeah, but pure potassium metal straight into your tank makes dosing much more,
    Interesting.
     
  9. rock_lobster

    rock_lobster Valuable Member R2R Supporter

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    aha my girlfriend may be more interested in trying that experiment lol
     
  10. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Article Contributor Expert Contributor

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    To start fires? :D

    It burns in contact with water.

    If you were a pyro, beware it also boosts pH and alk after burning off the hydrogen gas. :D

    2 K + 2  H2O → 2 KOH + H2 → 2K+ + 2OH- + H2
     
  11. Randy Holmes-Farley

    Randy Holmes-Farley Reef Chemist Staff Member Team R2R R2R Supporter R2R Excellence Award Article Contributor Expert Contributor

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    That's certainly true. Think Hindenberg. :D
     
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