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    New tank syndrome happens as pollution (NH3) builds up in water caused by fish excreta and uneaten food because benefitial bacteria have not yet populated filters in sufficent volume to process the waste created.

    seneye_new_tank-02.png

    Care should be taken to watch NH3 levels during cycling the aquarium even if  you are fishless cycling.

    If NH3 levels raise to unsafe during cycling, a number of measures can be deployed to lower pollution levels.

     

    1ppm of ammonia or ammonium (ammonia) will make 2.7ppm of nitrite which will make 3.6ppm of nitrate

    Please note however that NH3 is 100x more toxic to fish than No2 (nitrite).