Do you really need a lake or pond aerator?

If you have an open body of freshwater on your land, then it’s likely that you will need some form of lake or pond aerator installed. Without a pond aerator pump, the water quality can become compromised over time, reducing the health of the fish life and water quality, whilst the algae will thrive.

What does a pond or lake aerator do?

A pond aerator pump literally aerates the water column of ponds and lakes. In essence, it mixes the water throughout the depth of the pond or lake, preventing stratification that can lead to fish deaths and an overabundance of algae.

Stratification is a natural process in ponds and lakes where the water column is differentiated into layers, characterised by warm water with low oxygen levels and colder water with higher oxygen temperatures. A pond aerator pump destratifies the entire water body, ensuring both an even temperature and sufficient oxygenation throughout the water column. Destratifying large bodies of water can be a big challenge to environmental managers who have to constantly fight a pond or lake’s natural drive towards stratification.

In general, there are three practical benefits to using a pond or lake aerator for farmers and environmental managers:

Increased fish health: Most fish require a certain amount of dissolved oxygen to survive, which is why one of the biggest causes of fish kills are low oxygen levels. When a pond or lake is stratified, the fish cannot inhabit the whole water column, instead they need to remain in the layers that are adequately oxygenated. If you have a deeper layer of oxygen deficient water in the pond and the water body suddenly turns over (a natural occurrence in autumn) this can be enough to create large fish kills as the oxygen deficient water overwhelms the thinner oxygenated surface layer.

Installing a lake or pond aerator however, destratifies the water column, preventing the formation of a bottom oxygen deficient layer, and ensuring the health of the fish.

Improved water quality: Water that is deficient in oxygen causes bacteria that live in this type of environment to flourish, releasing hydrogen sulphide, ammonia, methane and carbon dioxide, killing not only the good bacteria, but also the fish. Water quality is compromised, and the pond or lake rapidly moves towards an unhealthy state. A pond or lake aerator will increase the oxygen levels throughout the water body, improving the water quality and resulting in a healthier and cleaner pond.

Reduced pond algae: A pond aerator pump will also mix algae spores throughout the water column, reducing the amount of time the spores spend in the warm sunlit surface layers, and slowing their growth cycle accordingly. Increased oxygen levels can also cause a shift in the type of algae that grows in ponds, from the problematical blue green algae to the less problematical green algae.

For lake and pond remediation, contact BioRemedy on 07 3889 8250 or send us an email.