Use a pond aerator to aerate and add oxygen to your pond. We have a variety of pond aeration systems including diffused pond aerators that consist of an air bubbler or diffuser that disperses oxygen bubbles from the bottom of the pond up to the top. The diffuser is connected to an air tubing (either weighted or a poly tubing that floats) and then to an air compressor (or called an air pump) on the shore. A high volume surface aerator is actually a floating pump that rapidly churns the water and collects air molecules and rapidly adds them to the water. Floating fountains are pretty and can also aerate the pond but don't typically aerate all the way to the bottom which is the best way to aerate the entire body of water and avoid stagnant water that sits on the bottom.