Ponds are beautiful accents to landscapes, but they require proper air circulation, or aeration. Ponds form naturally where water drains or stops moving, so stagnant water is a natural problem. Improving circulation using a waterfall, aerator or fountain allows a denser population of fish and keeps ornamental plants healthier.
With algae blooms and then decay in stagnant water, unhealthy levels of carbon dioxide can build up and kill fish and other organisms in the pond. When a pond is supplied with adequate aeration, natural decay occurs without causing a buildup of carbon dioxide.
Advantages of a Fountain
Fountains can be added for aesthetics and aeration in shallower ponds and lakes. They are rated by gallons per minute or horsepower. Fountains can be installed on floating bases or placed on the bottom of the pond or pool. They use normal 120V AC current.
Advantages of an Aerator
Aerators are pumps that provide air pressure to a bubbler (diffuser). The aerator pump is kept in a dry area, and the air is supplied through a hose to diffuser on the bottom of the pond. For deeper ponds and lakes, air circulation from the bottom of the pond can be important. They provide much less of a visual effect than fountains, and in many cases this is desirable. They will also keep the surface of the pond from freezing over completely in winter.
Benefits of Faucet Aerators
A faucet aerator is an inexpensive, easy-to-install circular metal device with a screen that screws onto the end of the faucet. As...