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Thread: Water Changes

  1. #1
    Join Date
    Oct 2015

    Water Changes

    A key part of aquarium maintenance is the water change, which should be performed about every two weeks. In most cases, 10-15% of the tank volume is sufficient. A good method is to replace the water extracted while vacuuming the gravel, which will eliminate uneaten foods and other residues that settle on the substrate.

    It is highly recommended to check the water parameters of both the tank and replacement water. Most tap water (city water) contains either chlorine or chloramine. Chlorine will air out rather quickly (kept in an aerated bucked for twenty-four hours); chloramine (chloramine = chlorine + ammonia) will not. Using a water conditioner will neutralize the chlorine in both cases, but ammonia will still be present in the latter. It has to be broken down by the nitrifying bacteria present in the aquarium. This may take longer than your fish can tolerate.

    Other elements of municipal water may be phosphates, iron, and other heavy metals. To find out about your tap water chemistry, call your local water company.

    Well water is usually harder than tap water, but is chlorine/chloramine free.

    Filtered water should also be checked on a regular basis and should be considered part of your aquarium maintenance routine. The filter membranes could be damaged or may require replacement prior to the expiration date.

  2. #2
    Member Chix's Avatar
    Join Date
    Oct 2015
    Some of my fish starting loosing color after ICH treatment and I suspected it could the water that's causing the color changes. I've been told to change a large amount of water after each treatment, I'll also be trying some of your tips and see how it goes!


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