How does one add oxygen to a pond?

Answer

get some pond plants, get rid of algae and decaying plant / animals in pond

The amount of oxygen in pond water is, in part, a function of the temperature of the water. Hot water holds less oxygen than cold water. So shading the water to reduce the temperature is one way to increase the oxygen level in a pond. Another way is to increase turbulance at the water surface. Add a fountain, water fall or a spitter to cascade the water into the pond.

Remember, plants only add oxygen during the day in the presence of sunlight. At night, when there is no sunlight, they use oxygen. And, yes, decaying plant matter and fish consume oxygen. (www.rosepond.com)

• When to trim birch tree?
• What can you use to paint a pond to make it leakproof?
• What is the evaporation rate at 31C of a fountain with 10 litres of water with humidity of 60?