New tank syndrome & NH3
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[MISSING: System.API.no-headers]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.
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.