The filter is wiklich very quiet and makes a very well-made impression. Installation and Filterwchsel are super easy. Thanks jewel Dekorückwand and filter cover the filter is pracktisch not be seen. Through space for the heater in the filter this can not be seen even in the basin and provides the housing for opt. Heat distribution in the aquarium. Bin all very pleased in particular with the filter system Bioflow 3.0 !!!