Linear Air Pumps

All fish require oxygen. As an enclosed system, the garden pond often cannot produce sufficient amounts of oxygen. Frequently sources of oxygenation such as water fountains, water falls, or streams are not incorporated into the garden pond design. However, when these water features are in use, it is still possible for the oxygen level in the pond to be insufficient. This is likely in the summer when increasing water temperatures reduce the waters ability to hold oxygen. Additionally, when photosynthesis (the exchange of oxygen and carbon dioxide between fish and plants) is inadequate during fall and early spring, oxygen levels can drop in the pond.

If fish are observed gasping at the surface of the pond, it is likely that the oxygen level has fallen below safe levels for fish to survive. If this occurs it is critical to provide oxygen immediately.

Algae remedies and fish medications can have a lowering effect on the amount of dissolved oxygen in the pond. Aerating the pond during treatment is recommended.