Abstract: Accordingly, a filtering system for ponds is provided. The system includes a pond filtering and skimming device having defining a first internal chamber. Disposed within the chamber is a removable net disposed between the inlet and filter to entrain any objects which flow into the first chamber along with the pond water and a biological filter to filter at least a portion of any nutrients out of the pond water flowing within the first chamber. Water from the first internal chamber is preferably pumped to a bottom portion of an internal second chamber formed by a tank. The water flows upward through a second filter within the second chamber which filters at least a portion of the nutrients out of the water. The water flows upward from the filter and is discharged back into the pond from the tank to form a waterfall by flowing outward over a ledge of the tank.