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Why should I aerate my pond? | Ponds & Lakes Q&A


Q: Why should I aerate my pond?

Q: Why should I aerate my pond?

Marty – Crivitz, WI

A: We talk a lot about the importance of aeration – and for good reason. Aeration with the Airmax® Aeration System, which involves diffusing oxygen into the water below the surface,  benefits the quality of your pond or lake in myriad ways, including these top five reasons:

  1. Reduces Pond Muck: Aeration cuts the nutrient load, like pond muck and other decomposing debris, in your pond. How? The increased oxygen and water movement provided by aeration helps to encourage the colonization of beneficial aerobic bacteria. These bacteria are responsible for digesting and preventing muck and nutrient accumulation.
  2. Boosts Oxygen Levels: Aeration also increases the amount of oxygen in your lake’s water. Beneath the water surface, the diffuser plates release tiny bubbles of oxygen. They disperse and circulate throughout the water column, providing life-sustaining O2 to beneficial bacteria, fish and submerged plants.
  3. Eliminates Thermocline: Aeration circulates the water and eliminates thermocline, which is a stratified layer of water between the warmer, surface zone and the colder, deep-water zone. Bottom diffuser aeration churns and mixes those temperature layers. The tiny air bubbles force the cooler oxygen-starved water to the pond’s surface where it becomes infused up with O2. The warmer, oxygen-rich water then drops down, fueling the beneficial bacteria.
  4. Improves Water Quality: By reducing the pond muck, increasing oxygen and circulating the water column, your water quality will improve. You’ll see less organic debris, clearer water, and happier, healthier fish.
  5. Reduces Winter Fishkill: Aeration also protects your game fish in the winter. As organic debris decomposes in your pond, gases are released into the water column. These gases become trapped when your pond freezes over, which reduces the amount of clean oxygen. If enough oxygen is displaced, your fish will suffocate. Running an aerator pumps fresh O2 in the water while maintaining a hole in the ice for gas exchange.

Ideally an aeration system should be matched to your pond’s size and shape, and run all season. If you need some assistance with planning a system that is properly sized for your pond, let us help with our free aeration mapping service and we will guarantee the results.

Pond Talk: What benefits have you seen in your pond or lake after adding an aeration system?

Keep Your Pond Healthy All Year - Airmax(r) Pond Series(tm) Aeration Systems

 

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2 Responses

  1. Be very careful about aeration in the winter, I have killed thousands by making this mistake when I first started raising fish. Cooler water holds much more oxygen than warm water which eliminates the need for bottom aeration. When I ran my bottom aerators in the winter months it cooled the ponds down so much that the fish started dying than bacteria took over and wiped out the pond, The solution to this was I moved my bottom diffuser out of the deep end closer to the bank 1-2 ft deep just enough to blow a hole in the ice and vent the gases off from the pond. I have had no winter kills since doing this.

    • Thanks for adding the word of caution. If you do have aeration in the pond it is best to keep the diffusers around the pond’s average depth, or for the winter in shallow water, and not in the deepest portion where fish are dormant in winter.

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