Water change

Discussion in 'Water Chemistry' started by Rasta, Aug 3, 2010.

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  1. Rasta

    Rasta Plankton

    Joined:
    Mar 5, 2009
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    15
    How many gallons should i change out of 40 gal?
     
    Rasta, Aug 3, 2010
    Rasta, Aug 3, 2010
    #1

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  2. smackrock

    smackrock Coral Banded Shrimp

    Joined:
    Sep 23, 2009
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    Location:
    Monroe, CT
    Depends on how often. I use to own a 46gal tank where I did 5 gallon water changes every other week. With figuring in your rock and substrate, you do lose some gallons but I aimed for between a 20-25% water change every month. Something in that realm would not be bad, but you could go as high as 50% water changed every month. Depends on the sensitivity of your tank mates and their needs.
     
    smackrock, Aug 3, 2010
    smackrock, Aug 3, 2010
    #2
  3. Kelley11

    Kelley11 Peppermint Shrimp

    Joined:
    Sep 10, 2009
    Messages:
    418
    Location:
    Porterville, CA
    Just my recommendations:

    Reef tank I would change 10% - 4 Gallons each week
    (for your tank)
    FOWLR - 10% - 4 Gallons every other week
     
    Kelley11, Aug 3, 2010
    Kelley11, Aug 3, 2010
    #3
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  4. coral reefer

    coral reefer Giant Squid

    Joined:
    Jan 9, 2006
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    Location:
    Wonderland
    Best to do small water changes weekly to help reduce nutrients, dillute dissolved organics, tannins, toxins etc. and also replace those buffers, major and trace elements lost through fish respiration, carbon dosing and filtration(skimmer etc.).
    5 gallons or so, IMO...
     
    coral reefer, Aug 4, 2010
    coral reefer, Aug 4, 2010
    #4