Mg Level going down

Discussion in 'Water Parameters and Additives' started by Dexter, 10 Dec 2014.

  1. Dexter

    Dexter

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    I have recently started looking at getting my tank water params to be more stable. I am a bit baffled and don't understand why my Mg level keeps dropping? A week ago it was sitting on 1110ppm and when I tested over the weekend it was on 990ppm. I was even dosing 2ml Mg a day to try and get it raised.

    Is it normal for it to drop? Should I now dose more everyday to try and get it up?
     
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  3. Criggy

    Criggy

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    WHats your calc and alk at?
     
  4. Dexter

    Dexter Thread Starter

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    Alk:9.4 if I remember correctly - That also came down from 10.9
     
  5. Criggy

    Criggy

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    Tank age? Possibly growth of coraline algae sucking up mg? Have you introduced any new sps or LPS? What are you using to dose?
     
  6. Rookie

    Rookie

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    Have the test kits not maybe expired? Also what are you dosing for Mg?
     
  7. Dexter

    Dexter Thread Starter

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    Don't have Coraline growth. Tank about a year old. I use Pure Reef to dose.

    Have some softies and some LPS frags
     
  8. Criggy

    Criggy

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    Test your daily loss on mg, calc and kh and increase dosing until there is no longer a loss. try and keep MG and calc in a ratio of 3 to 1 roughly and kh is fine around 8-11 - stability is the key! Rather also dose more often than only once a day in larger quantities
     
  9. Criggy

    Criggy

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    Your consumption should not be too high though with a couple lps. maybe send a pic of your tank
     
  10. Criggy

    Criggy

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    What salt mix are you using?
     
  11. Dexter

    Dexter Thread Starter

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    Cool....Thanks @Criggy. Should I try and dose then in the morning a little bit and then in the evening a little bit?
     
    Last edited by a moderator: 26 Nov 2015
  12. Dexter

    Dexter Thread Starter

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    I used to buy pre-mix water from LFS but started mixing own water about month and a half ago. Not sure what lfs used but i am using Aquafin
     
  13. Criggy

    Criggy

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    Yes remember stability is key better to dose 1ml 10 times throughout the day than 5ml twice daily. What are the specs of the Aquafin salt - mg, kh and calc? If it does not say then test a batch of newly mixed water - for interest sake. If you are trying to mantain mg at 1400 for example and your salt mix has mg of 900 then best change salt brand
     
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  14. Dexter

    Dexter Thread Starter

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    Need to test fresh batch - I had the params at one stage but cant remember them now of by hand.
     
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