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acceptable levels

Discussion in 'Cycle your Tank' started by SeanTrollope, Sep 25, 2017.

  1. SeanTrollope

    SeanTrollope Member

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    what are the acceptable levels for NO2 in a tank. obviously 0 is what we aim for but at what point can we not have to worry about our fishes well beings.

     
  2. Byron

    Byron Member

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    I am assuming you are referring to nitrite, technically written as NO-2 [NO2 is technically nitrogen dioxide] as most of us tend to ignore the minus sign.

    Fish readily absorb nitrIte from the water and it combines with the hemoglobin in their blood, forming methaemoglobin. As a consequence, the blood cannot transport oxygen as easily and this can become fatal. At 0.25 ppm nitrite begins to affect fish after a short period; at 0.5 ppm it becomes dangerous; and at 1.0 ppm it is often fatal.

    Nitrite should never test above zero in any aquarium with fish. Even a short exposure to nitrite can have permanent and irreversible detrimental effects on fish.

    Byron.
     
  3. SeanTrollope

    SeanTrollope Member

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  4. eaglesaquarium

    eaglesaquarium Life, Liberty & Pursuit of the perfect fish tank
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  5. SeanTrollope

    SeanTrollope Member

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