The importance of having sufficient oxygen in your pond

Oxygen is of crucial importance for all living organisms in your pond. It is important to keep your oxygen level at the correct level so as to prevent fish deaths and algae growth.
How do I know wether there is insufficient oxigen in my pond?
In many cases this will be obvious because the fish will move through the water slowly, gasp for air or jostle one another for the most oxygen-rich spot. These signs indicate a lack of oxygen and we advise aerating your pond at once. This can be done by getting the water surface to move as much as possible by means of, say, an air pump, fountain, waterfall or even a garden hose.
How can I solve insufficient oxygen structurally
Since you cannot always be at home to keep an eye on how your fish are behaving, AquaForte has a simple solution for keeping the oxygen level in your pond at the correct level: AquaForte Air Pumps.
Causes of insufficient oxygen:

Rising water temperaturein the spring and summer
Binding organic material at the bottom of your pond, such as leaves and uneaten food
Plants and algae absorb oxygen from the water at night, to gradually give it back during the day. In the morning there is therefore less oxygen.