Why my salinity decreases ... ?

Discussion in 'Salt' started by minajaguar, Oct 22, 2012.

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  1. minajaguar

    minajaguar Spaghetti Worm

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    Why my salinity decreases ... with rate (from 1.025 to 1.023) per month .
     
    minajaguar, Oct 22, 2012
    minajaguar, Oct 22, 2012
    #1

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  2. Ryan Duchatel

    Ryan Duchatel Millepora

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    Thats not very much, but contra to popular belief salt can evaporate.

    Thats how you get salt formation on different peices of equipment etc. Or if you do 10% water change, you are taking a little bit more out than you are adding.

    Do you have an ATO?
     
    Ryan Duchatel, Oct 22, 2012
    Ryan Duchatel, Oct 22, 2012
    #2
  3. minajaguar

    minajaguar Spaghetti Worm

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    no top off ..... but my hob skimmer accumulate some salt on its outer parts
     
    minajaguar, Oct 22, 2012
    minajaguar, Oct 22, 2012
    #3
  4. Vinnyboombatz

    Vinnyboombatz Giant Squid

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    This is not accurate.Salt does not evaporate. If you are seeing salt form on equipment it got there from splashes not evaporation.Even small air bubbles when they pop on the surface will splash a small ammount of sw spray and this is what you are seeing.;)
     
    Vinnyboombatz, Oct 22, 2012
    Vinnyboombatz, Oct 22, 2012
    #4
  5. NanaReefer

    NanaReefer Fu Manchu Lion Fish

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    Water evaporates leaving salt behind as residue :)
     
    NanaReefer, Oct 22, 2012
    NanaReefer, Oct 22, 2012
    #5
  6. tharsis

    tharsis Peppermint Shrimp

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    Salt definitely does not evaporate, that is the whole principle of distillation. Now you could get salt to boil and turn to gas at ~2000 degrees F but we don't really need to worry about that in our tanks (unless the summertime metal halide people have seen otherwise).
     
    tharsis, Oct 22, 2012
    tharsis, Oct 22, 2012
    #6

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  7. rc_mcwaters3

    rc_mcwaters3 Clown Trigger

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    if it is droppong that much just increce the amount of water changes to keep it leveled out simple and cheep
     
    rc_mcwaters3, Oct 22, 2012
    rc_mcwaters3, Oct 22, 2012
    #7
  8. Corailline

    Corailline Super Moderator

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    It is a dry heat, yeah right !
    What device are you using to measure the SG?
     
    Corailline, Oct 22, 2012
    Corailline, Oct 22, 2012
    #8
  9. minajaguar

    minajaguar Spaghetti Worm

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    normal calibrated needle hydrometer
     
    minajaguar, Oct 22, 2012
    minajaguar, Oct 22, 2012
    #9
  10. Corailline

    Corailline Super Moderator

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    It is a dry heat, yeah right !
    I would get two and compare the value against each other, if you do not want a refractometer.

    Also ATO should help prevent swings, honestly 1.023-1.025 on a needle arm hydrometer is not surprising, nor alarming in my opinion.
     
    Corailline, Oct 22, 2012
    Corailline, Oct 22, 2012
    #10
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