Adding Salt

Discussion in 'Beginner Discussions' started by Neil H, 4 Jul 2008.

  1. Neil H

    Neil H Moderator MASA Contributor

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    Hi Guys,

    I siliconed my overflow box in last night .... two questions ...

    1. When is it "safe" to start adding Water ?
    2. How do I add the salt?,do i measure the tank and sump volume calculate the salt required based on the makers instructions and then just sommer dump it all in at once? Is there some sort of cunning protocol for doing this.... bearing in mind this is a first fill, not a top up/replacement? Tank volume is est 550L

    Thanks
     
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  3. Mekaeel

    Mekaeel Moderator MASA Contributor

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    1.allow to dry for 24-48 hours.
    2.fill up you entire tank with RO water.switch on all pumps.make sure there is no substrate or LR.then add in salt and measure using a refractrometer until you get a SG of 1.025. test your salinity after every few hours to make sure all salt is dissolved.
     
    Last edited: 4 Jul 2008
  4. Alfie

    Alfie

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    You should find out (depending on the make of salt) how many grams you need per litre of water to to have a salinity of 1024 and then add accordingly.
     
  5. Alfie

    Alfie

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    Sorry forgot to mention that you should mix your salt first before adding to the tank to get it to dissolve.
     
  6. Rory

    Rory Admin MASA Contributor

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    Mix it with what Alfie? This is a first fill so I don't see why you can't "mix" it in the tank.

    I would obviously let the tank silicone etc cure and maybe freshwater test the tank.

    Fill the tank with RO, turn on the pumps and heaters in order to heat the water and oxygenate it. Then add the required amount of salt and leave it for a few days. Then only add live rock.

    Mekaeel you can't put the live rock in RO water, will then be dead rock.
     
  7. Mekaeel

    Mekaeel Moderator MASA Contributor

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    sorry Rory.there was a typo there, instead of 'no' i typed 'now'.yes you will kill LR if it is in plain RO
     
  8. Alan

    Alan Admin MASA Contributor

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    If you not using live sand i would add the gravel first, RO water, salt and let it all mix in then add your live sand, live rock wait for the cycle.
     
  9. Ocean

    Ocean Lazy Sea Slug

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    I would let the SG start at 1.022 then slowly move up my reason being that the higher the SG the less the oxygen it can hold then slowly move up to 1.025( i would add FW mollies to the tank to push the cycle then remove when you get fish)
     
  10. Neil H

    Neil H Thread Starter Moderator MASA Contributor

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    Thanks for the info guys!!

    Alan, it is a totally new system, but the sump has a DSB compartment, i have play sand i will be putting in there when i start the first fill on Sunday !

    My LFS suggests putting in uncured / partilly cured LR to start a system? is this better than going for cured LR?
     
  11. Alan

    Alan Admin MASA Contributor

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    yeah no problem, the rock will be cured by the time the system has cycled and with uncured rock you tend to get the cycle going very quickly because of all the die off on the rock.
     
  12. Mekaeel

    Mekaeel Moderator MASA Contributor

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    if i might add,make sure your skimmer pulls out any gunk from your uncured LR.
     
  13. Rory

    Rory Admin MASA Contributor

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    Yes run your skimmer as well. It will help oxygenate the water.
     
  14. Andreas

    Andreas

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    i added water to my 4ft tank about 5 hours after i siliconed it and it's still standing today. so 24hrs should be more than enough:)
     
  15. Mekaeel

    Mekaeel Moderator MASA Contributor

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    i do know that the Bostik Marine silicone sets in a matter of a few hours
     
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