Saltwater

Discussion in 'General Discussions and Advice' started by mytank, 18 Sep 2011.

  1. mytank

    mytank

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    Ow that I have my RO unit going at full tilt I have a question. I made 150l today out of that two drums 25l are going to be salt water. I have calculated that I need 850g for 25l to make salt at 1025. I will confirm with

    Questions:

    1. Do I pour salt in now and leave plan on using salt water in a weeks time
    2. Do I need to put a heater in to dissolve the salt
    3. Do I need a flow pump in there too.


    How do you guys make salt water?
     
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  3. Singularity

    Singularity Hmmm amper!

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    i use to have a powerfull powerhead and a heater in the container, heater i switched on a day before wc to get the water to tank temp.
     
  4. Tobes

    Tobes Retired Moderator

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    I put a pump and heater in a drum and circulate until temp is 25. I then add salt slowly in stages to ensure proper dissolving. I then circulate for 24hrs and check salinity. Adjust if needed. Never use salt water you just mixed now, let it mature at least 24hrs.
     
  5. Nemos Janitor

    Nemos Janitor

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    The most important part of mixing salt is to properly aerate the mixture. Most modern "PRO" mixtures, those for reef tanks, contain elements to increase Ca and Mg.

    The reactions in the modern salt chemical mix suck up oxygen and create, amongst others, a alarming amount of ammonia. So if the mix is not aerated sufficiently then one could be adding a imbalanced salt solution that has not been allowed to properly mix and is low in DO and high in ammonia.

    A circulation pump to mix does help, but always remember that RO water, whilst stored, is low in DO. So a simple "shake and swish" and peek to see if all has dissolved will mislead. It is the well mixed and DO enriched water we want to add to our aquariums. After all we are paying good money for the salt mix. Best mix it properly.
     
  6. mytank

    mytank Thread Starter

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    Ok so this is what I am thinking of doing:

    24 hours before the water change

    1. Add a heater set at 25
    2. Add a flow pump
    3. Add a air pump with a airstone

    let that puppy run for 24 hours then do the changes?
     
  7. Nemos Janitor

    Nemos Janitor

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    :thumbup:

    Rem to check the Salinity.
     
  8. mytank

    mytank Thread Starter

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    Yup will do :) with my brand new refractormeter :)
     
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