salt mixing

Discussion in 'Beginner Discussions' started by Donovan, 23 Apr 2011.

  1. Donovan

    Donovan

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    What are the possible outcomes of not aerating your salt moixture. For 24 hrs
     
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  3. Manic

    Manic Moderator

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    Incorrect pH of the newly added salt water or at least thats what I have been told. Also letting the salt mix settle for 24 hours before adding it to the tank gives all all the salt time to dissolve properly.
     
  4. Donovan

    Donovan Thread Starter

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    Ok cos I have 2 x 4000 ltr pumps in 150 ltr circulating
     
  5. Manic

    Manic Moderator

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    That is what I usually do. I don't exactly aerate the water but just circulate it. I usually face the pump towards the surface so it creates surface movement which in turn adds air to the water.
     
  6. Donovan

    Donovan Thread Starter

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    And one is running a ventury
     
  7. butcherman

    butcherman Moderator MASA Contributor

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    perfect
     
  8. Donovan

    Donovan Thread Starter

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    My question is ddoes it have to run 24 hrs wth that much circulation temp is 26 deg
     
  9. durleo

    durleo

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    I guess it would depend on how big ur system aswell - If you doin a 10% on a 1500lt system then it wont cause major fluctuations- if you doin a 50% change on a 300lt system then let it sit for 24hrs
     
  10. Donovan

    Donovan Thread Starter

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    800 ltr tank
     
  11. Reef Maniac

    Reef Maniac MASA Contributor

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    I believe YES - and 48 hours would be even better.

    Your salt does not consist of just table salt, but contains many other salts as well - and quite a few of them do not dissolve very quickly. Even more important, the water's pH will only settle to it's "long-term" level after the water has absorbed enough CO2 from the air to reach equilibrium, and that takes time.

    Also, of course, one needs to ensure that the water's temperature AND salinity/SG closely matches that of your current tank water - and to correct the SG with small additions of salt or RO water also takes some time.

    Why are you in such a hurry (apparently...) to use the water? I plan my partial water changes in advance, and either mix the water during the week for use the next weekend, or mix it one weekend, to be used the next weekend.

    Hennie
     
  12. Donovan

    Donovan Thread Starter

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    No rush
     
  13. IMarine

    IMarine

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    excellent advice REEF MANIAC
     
  14. Theo

    Theo

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    Perfect explination reef manic. another reason for me to keep my water circulating for 24hours+ is the dissolvents in the salt mix you use, the long term effect of ph and then your water is very well airated....
     
  15. Nemos Janitor

    Nemos Janitor

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    The stabilization of PH and parameters are some of the reasons for aerating but the main one IMO is the release of Ammonia. Salt mixes have concentrations of Magnesium in them. When first mixed the Mg reacts with the nitrogen and causes ammonia. By aerating the ammonia is released and the Ph stabilises. For this reason, testing newly mixed salt water can give false results.

    Also always slowly add the salt to the water when mixing. And never the water to the salt. This helps produce less Ammonia.



    A few other bits of info if you don't already know.
    You will also find that the addition of Mg as a supplement is recommended to be dosed in small increments to raise your Mg level. The reason is if you add too much, or large amounts, there is ammonia creation.

    Some Nitrite and nitrate test kits give false readings at low Ph.
     
    Last edited: 24 Apr 2011
  16. Donovan

    Donovan Thread Starter

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    thanks for all the posts guys i understand now
     
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