What Aeration Adds to Your Pond
Whether you’re considering a surface aerator, an aerating fountain, or a diffused aeration system, this pond aeration guide was built to help you understand how aeration systems work, choose the right one, and get it installed without issue.
If your pond’s ecosystem were a body, aeration would be its cardio. It keeps oxygen flowing, clears out waste, and builds a healthy system from the inside out. Aeration works by increasing circulation and oxygen exchange in your water, which prevents algae blooms, reduces foul odors, and protects fish during the hottest months of the summer and iciest stretches of the winter.
Each type of aerator does this a little differently. Surface aerators and aerating fountains agitate the water at the top, while diffused systems push air from the shore down to a bottom diffuser that oxygenates the entire water column. The right choice depends on your pond’s depth, size, shape and what’s driving your water quality concerns.
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Not sure how big your pond actually is?
Use our pond calculator to find your surface acreage and volume, the first number you’ll need to size an aeration system.
Surface Aeration vs Diffused Aeration
Not sure which one you need? Here’s the difference between the two at a glance!
Surface Aeration | Diffused Aeration | |
Usable Systems | Aerating Fountains Surface Aerators | Sub-Surface Aeration Systems |
Ideal Pond Depth | Works best at or under 6 to 8 feet | Effective at almost any depth, especially valuable past 8 feet |
How Oxygen is Added | A propeller throws water directly into the air, where the droplets interact with the oxygen and splash down to the surface, adding oxygen | An air compressor sits on the edge of your pond and pushes air through air hoses that are attached to bottom diffusers that release air from the bottom of the pond |
Winter Operation | Usually shut down or removed from pond | Often run through winter to prevent fish kills |
Best For | Aesthetic ponds on the shallow side | Fish ponds, deep ponds, ponds with serious water quality problems |
Aeration System Sizing
Scott Aerator, Airmax, Kasco & More!
