Mixing salt

Discussion in 'General Discussions and Advice' started by Zuna, 4 Jul 2011.

  1. Zuna

    Zuna

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    hey guys

    quick question... when mixing salt does the salt in the mixing tank need to be the same salinity as the salt in your DT.

    the reason I’m asking is that I’ve had my Alkaline and calcium raise enormously and i ve not been using any additives besides phosphate remover and microbacter7.

    the only thing I’ve been doing is my 10% water changes which is 75L so i don’t know if I’m using too much salt or what
     
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  3. rakabos

    rakabos

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    Must be the same of course. What does your DT's salinity look like?
     
  4. 459b

    459b Moderator MASA Contributor

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    What are your ALK and calcium readings?
     
  5. Tobes

    Tobes Retired Moderator

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    Must be the same to prevent fluctuations - most inverts and corals are sensitive to salinity changes.
     
  6. Zuna

    Zuna Thread Starter

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    my Alk was 15 and calcium was over 520. my salinity is at 25
     
  7. 459b

    459b Moderator MASA Contributor

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    That is high! Are you sure you not adding anyhting else?
     
  8. Zuna

    Zuna Thread Starter

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    nope i havent added anything since January when it first happend... i got it down by doing a water change but with the salinity @ 20 but it didnt really make a difference in my DT's salinity its still @ 25
     
  9. rakabos

    rakabos

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    Dont put all your trust in test kits, what do you use to test parameters, and specifically your salinity?
     
  10. Zuna

    Zuna Thread Starter

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    I’m using the API reef master test kit and a plastic and glass hydrometer.
    my polyps and hammer corals were not opening and acropa i added bleached after two days
     
  11. rakabos

    rakabos

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    You know that a hydrometer is terribly inaccurate right? Cant you take your water to be tested with a refractometer just to be 100% sure what the salinity is?
     
  12. 459b

    459b Moderator MASA Contributor

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    are you doing water top ups with RO?
     
  13. Zuna

    Zuna Thread Starter

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    yes im using RO water for top ups and only sw mix for water changes unless my dad tops up with sw mix .

    @rakabos ill see if i can go get one today
     
    Last edited by a moderator: 26 Nov 2015
  14. rakabos

    rakabos

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    I suspect you will find a surprise when you test with a refractometer. Maybe take a sample of your water to a LFS to be tested, refractometers aint exactly cheap, but a must have in my opinion
     
  15. 459b

    459b Moderator MASA Contributor

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    OK. Just seems strange that calcium and ALK can be that high if you not dosing anyhting.
     
  16. rakabos

    rakabos

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    Im guessing salinity will be around 1.030 with those calcium and alk readings, but just guessing
     
  17. Zuna

    Zuna Thread Starter

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    cool thanks dude... ill take a sampleto idol later today and see what they say
     
  18. rakabos

    rakabos

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    very good :thumbup:

    Let us know hey
     
  19. Braco

    Braco

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    I agree with the above statement...my hydrometer the floating one really skewed the results and i almost ended up loosing everything...luckily i decided to go to the lfs..who incidentally make us of a refractometer..;)
     
  20. rakabos

    rakabos

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    If you are serious in any way,shape or form about this hobby you cannot use a hydrometer!
     
  21. Alan

    Alan Admin MASA Contributor

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    Something is very wrong here, is that alk reading a DKH reading?? If it is your kits are faulty, it is impossible to have a dkh of 15 and Ca at 520, one of the 2 would have precipitated out of the solution already, check all readings with reliable test kits and a refractometer.
     
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