topping off with salt water?

Discussion in 'Salt' started by crustytheclown, Oct 11, 2009.

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  1. crustytheclown

    crustytheclown Eyelash Blennie

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    hey my salinity is at 1.026 and i need to top off. If i add fresh R/O water wont my salinity drop? Could i mix some salt into the top off water so i can keep a steady salinity?:confused:
     
    crustytheclown, Oct 11, 2009
    crustytheclown, Oct 11, 2009
    #1

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  2. PackLeader

    PackLeader Giant Squid

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    No, you should only be topping of with fresh water, not salt. The salt does not evaporate, only the water does ;) So as the water evaporates, your salinity is actually going up.
     
    PackLeader, Oct 11, 2009
    PackLeader, Oct 11, 2009
    #2
  3. crustytheclown

    crustytheclown Eyelash Blennie

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    ok so adding fresh water doesnt change the salinity level??
     
    crustytheclown, Oct 11, 2009
    crustytheclown, Oct 11, 2009
    #3
  4. jzenob

    jzenob Coral Banded Shrimp

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    No it doesnt make sure you top off with RO/DI water!!
     
    jzenob, Oct 11, 2009
    jzenob, Oct 11, 2009
    #4
  5. mikejrice

    mikejrice 3reef Affiliate

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    Correct.
     
    mikejrice, Oct 11, 2009
    mikejrice, Oct 11, 2009
    #5
  6. crustytheclown

    crustytheclown Eyelash Blennie

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    cool thanks dudes@!
     
    crustytheclown, Oct 11, 2009
    crustytheclown, Oct 11, 2009
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  7. Peredhil

    Peredhil Giant Squid

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    assuming you are topping it off to the same level. If you add freshwater and raise your water level higher than it was before, it will drop the salt level.


    the more you let it evaporate before you top off, the higher your salt concentration will go. And when you finally top off, it will lower back down.

    This is what we call a "swing" and it can kill shrimp (you have a thread on that).
     
    Peredhil, Oct 12, 2009
    Peredhil, Oct 12, 2009
    #7
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