Magnesium stuck

Discussion in 'Water Parameters and Additives' started by JackSplat, 19 Nov 2013.

  1. JackSplat

    JackSplat

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    Hi guys,

    I recently went from using off the shelve supplements to using Randy's recipe 2. Previously I used Seachem Mg, Red Sea Ca and Sodium bicarb (cooked).

    I had a steady daily use of all three, about 0.5 dkh alk, 10ppm Mg and 5ppm Ca.

    Since switching over the alk and Ca is depleted as always, but the Mg has been stuck at 1360 - 1400 for almost two weeks now without me adding any Mg supplement. I checked the kit (had an issue with my Ca previously) but that is fine (tested it on freshly prepared sea water and it was spot on).

    Has anyone seen this type of issue before?

    All the other parameters checks out and the tank is doing great.

    Thank you
     
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  3. Toolboysa

    Toolboysa Moderator

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    Ive always found Mg a very slowly used element in my tanks. Usually just throw in a capfull every 2 weeks for good measure
     
  4. Visser

    Visser MASA Contributor

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    Yep, can be normal.
    I know of some fellow reefer's that only needed to dose Mg about every three month regardless of the Ca & alk being depleted almost daily. (Sometimes without logical reason.)

    Ive experienced it myself. Some of my own tanks use a lot less Mg than other (considering Ca & alk uptake)
     
  5. Visser

    Visser MASA Contributor

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    Just keep monitoring it on a weekly basis...
     
  6. JackSplat

    JackSplat Thread Starter

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