This one stopped working for me after a month or two,was than 6 months and it just stops working. I can’t speak for anyone else but that was my experience with this particular filter.
With hang on filters, the key is that you have to have the water level at least higher than the level of the pump and impeller on the filter. Even if youre just level with the motor, a slight, momentary clog or snag of the motor will break the siphon in the intake tube and the motors are not powerful enough to suck it back up without priming.