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Thread: Tap Water

  1. #1
    Senior Member nbreau's Avatar
    Join Date
    Mar 2003

    Tap Water

    How could I find out whether the city tap water is suitable for my tank ? Anybody in Atlantic Canada using tap water without any problems ?
    sold the 77gallon back in 2005, looking to setup a nano

  2. #2
    Senior Member
    Join Date
    Apr 2003
    buy an RO/DI if possible. There really cheap in price here! While some tap waters have little phosphate they have numerous other chemicals and minerals in there. The purer the better as with lots of the foods and additives we add there can become a build up so RO/DI is the way to go.

  3. #3
    Senior Member GoSUV's Avatar
    Join Date
    Feb 2003
    You really don't want to take your chances with tap water, as even though the water might be low in phosphates and other nutrients, the pipes that deliver your tap water may be copper, and eventually you'll have a toxic build-up in your tank which will kill all invertebrates. This also applies to store bought distilled water. You never know what equipment they use to produce the distilled water and whether the water came into contact with any copper pipes after it has been distilled.

    Getting a RO/DI unit is a cheaper solution in the long run.
    If the authors of "Finding Nemo" knew anything about Clownfishes, Marlin would turn into a female and Nemo would become her new husband.

  4. #4
    Senior Member
    Join Date
    Jan 2004
    When you use tap water you never know unless you test it for everything. The purity can vary a lot in one year. For example, often in winter th phosphate level in the tap water will be higher than in the summer. You can't try to keep invertebrates without having a stable source of water.

  5. #5
    Senior Member
    Join Date
    Apr 2003

    Cool gosuv

    I agree with the RO/DI but just some info about the copper pipes. Copper doesn't react with freshwater like it does with salt so actually thats not really a problem. I've used tap water for some time and did have probs with algea/cyno but kept many inverts with no mortalitys. There has been some talk/studys on this and actually lots of reefers do use tap/well water but I do prefer the RO/DI route.

  6. #6
    Senior Member
    Join Date
    Jan 2004
    What is the AP tap water filter like?

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