How long can I keep water for water change?

Discussion in 'General Reef Topics' started by john1948, Aug 4, 2010.

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  1. john1948

    john1948 Feather Duster

    Joined:
    Nov 19, 2009
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    204
    Location:
    Albuquerque, New Mexico
    I think I just saw this question on the forum but I can't find it. I prepared ro/di water (7 gal) for my weekly water change 2 days ago. I added the synthetic salt mix and brought the prepared water to a SG of 1.026. However, I have not actually completed the water change yet. Is this water still good? or should I just make up a new batch of water?
     
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  3. Telgar

    Telgar Snowflake Eel

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    Location:
    Ft Washington, MD
    keep it covered with a powerhead in it and its good for several weeks
     
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  4. Peredhil

    Peredhil Giant Squid

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    I use one of those buckets from Home Depot that has an airtight lid.

    I store mixed SW in these for months and months and months at a time.

    When I'm ready to finally use it, I'll throw a PH and a heater/thermometer in the bucket 1-2 days ahead of needing it.
     
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  5. john1948

    john1948 Feather Duster

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    Location:
    Albuquerque, New Mexico
    Thanks guys.
     
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