You’ve got algae on your pond—or maybe you have nasty pond odors wafting into your house and mosquitos taking over your yard—and the solution you keep running into time and time again in your research is something called aeration.

But what is aeration? What does it do for your pond? How do you aerate a pond? These are all good questions, the answers to which escape most pond owners.

In order to help the average pond owner understand aeration a little bit better, we’ve put together a crash course:

What is pond aeration?

Pond aeration is a process by which oxygen is added to water, effectively raising the level of dissolved oxygen.  This dissolved oxygen is what fish use to breathe, and what other organisms use to keep your pond clean.

Two things are crucial in this process: aeration efficiency & mixing action.

High efficiency ensures that you’re imparting the most water at the lowest energy cost (basically getting the most bang for your buck), and the mixing action make certain that this highly oxygenated water is spread throughout your entire pond.

What does pond aeration do for me?

Aeration is integral to maintaining the appearance and aquatic health of your pond. The Mixing and Aerating actions perform four key roles:

1.  Reduce algae and clarify water by providing oxygen for beneficial bacteria to breathe—when these bacteria thrive, they rapidly consume the nutrient material in your pond that would otherwise fuel algae blooms and cloudy water.

Algae is also reduced through mixing. The mixing action both creates a turbulence that disrupts the algae habitat and circulates oxygen throughout the entire water column, allowing the safe bacteria to outcompete algae for food pond-wide.

2.  Get rid of pond odors by facilitating oxygen breathing, or aerobic, bacteria growth. When bacteria break down nutrients without oxygen, they release horrible pond odors!

Aerobic bacteria actually breakdown nasty pond odors before they reach the surface, keeping your pond smelling fresh.

3.  Provide fish the ideal habitat with aeration by ensuring that they have ample oxygen throughout the pond to breathe.

Fish health is also improved by the mixing action, as this destratifies the water column and avoids pond turnover (a twice-a-year phenomenon that sometimes causes the death of all your fish!)

4.  Limit mosquito breeding by mixing up the stagnant water they thrive in. What’s more, the oxygenating abilities of good aerators expand the fish habitat, allowing them to travel into shallow water and eat up the nuisance mosquito larvae.

What types of Pond Aerators are there?

On- Surface Aerators

Fountains: Pond fountains claim to aerate by launching water into the air. While this may look nice, it is relatively poor at adding oxygen to the water and costs a huge amount of money in electricity costs.

At the same time, fountains are unable to adequately mix lower levels of the pond. Between its poor aerating ability, its inefficient operation, and sub-standard mixing, fountains are a bad aeration choice.

Surface  Aerators: Surface aerators work in a fashion similar to that of fountains, except for they don’t offer a visually appealing spray pattern. So, not only is a surface aerator a bad, inefficient aerator—it looks ugly to boot!

Subsurface Aerators

Standard Diffused Aerator: Standard diffused aerators sit at the bottom of your pond, and are powered by a compressor onshore.

They release fine (tiny) bubbles at the bottom of the pond, which is fantastic at adding oxygen to your pond, but lacking in mixing—this is because the microbubbles rise too slowly to create a sufficient mixing action.

Windmill Diffused Aerator: Windmill aeration works exactly like standard diffused aeration except for one part—it uses a windmill instead of a compressor to push air.

Not only is the performance of this unpredictable because of the inconsistency of the wind, it also produces very small quantities of air (not nearly enough to oxygenate your entire pond!).

MARS Double Bubble™ Aerators: The MARS works just like a standard diffused aerator with a compressor onshore and a fine bubble diffuser on the bottom—gaining excellent oxygen transfer.

The advantage of the MARS is in its Double Bubble™ Technology, which combines both fine bubble efficiency with a component designed specifically for superior mixing ability: the coarse bubble static tube aerator.

This patented, synergistic combination allows the MARS to Mix & Aerate your entire pond, making it the most effective and efficient aerator on the market today.

For more information on the MARS Aeration system, visit our home page and watch the video on Eco-Friendly Aeration.

Tags: Aeration, diffused aeration, fountains, windmill aeration