After I was very excited at first by the filter are to me in the course of longer operation now but some noticed qualitative deficiencies that worthless the filter do. I operate more than one aquarium for years, This therefore is the worst filter. All defects were not initially described: The performance described declines quickly, so now yet the flow of about 5 liters per hour are, yes, He dribbles only to himself. Everything and the impeller have been regularly cleaned me. The pumping height is now about 10 centimeters, so that an operation is no longer possible. The filter sponge as fine and coarse filters (except for stones) dirty very quickly and is insufficient. Despite intensive cleaning and a better result. The sliding side closures are always difficult to move. At the tightness of the filter there is nothing wrong, as to the volume, but what good is anything if from an initial Hurra a serious disappointment is. Klarer bad buy, for the price is not a complaint more profitable. Dear 25 euros more for a branded product, which for years without defects in the other aquariums run.
