

The Kasco 5.1AF 5 HP Surface Aerator is specifically designed to provide superior aeration and water movement in ponds and lakes ranging from 2 acres to 4 acres or larger.


Ideal for estates, HOA communities, golf courses, resorts, and municipal ponds, this system creates impressive vertical spray patterns while helping maintain healthier water quality year-round.


The RingJet fountain series offers the perfect combination of maximum heights and delicate mass.


Delivers a strikingly wide ring of sparkling water with a low-profile pattern, maintaining clear and unobstructed views of your lake or pond.
Managing a pond up to five acres in size presents a unique set of challenges—and proper aeration is one of the most important tools in your toolbox. Whether you're trying to reduce algae, eliminate foul odors, or keep your fish healthy, surface aerators offer an efficient, low-maintenance solution for large-scale oxygenation and circulation.
This collection includes top-performing surface aerators specifically selected for ponds between 3 and 5 acres. These heavy-duty systems work by pulling low-oxygen water from beneath the surface and propelling it into the air, allowing it to absorb oxygen and fall back into the pond. This process not only increases dissolved oxygen levels but also improves water clarity, reduces muck, and minimizes fish stress—especially in warm summer months or under ice during winter.
We carry trusted brands like Scott Aerator, Kasco Marine, Bearon Aquatics, and Outdoor Water Solutions, offering a variety of horsepower options (from 1.5 HP up to 5 HP), voltages (115V and 230V), and mounting styles. Many models include built-in thermal overload protection, rugged stainless steel construction, and optional lighting for aesthetic enhancement.
Not sure which aerator fits your pond layout or fish stocking needs? Reach out to our team at Your Pond Pros—we’ll walk you through the selection process to make sure your pond gets the right solution for long-term health and beauty.
Frequently Asked Questions
1. How much horsepower do I need for a 5-acre pond?
Typically, a 3 to 5 HP surface aerator is recommended for ponds of this size, depending on depth, shape, and biological load. Larger units help ensure full coverage and oxygenation across wide areas.
2. Can I install just one aerator for a 5-acre pond?
In many cases, yes—especially with high-HP models. But oddly shaped ponds or those with shallow zones may benefit from using two aerators strategically placed for full coverage.
3. Will a surface aerator help with mosquito control?
Yes. By keeping the water moving and disrupting stagnant zones, surface aerators make the environment less favorable for mosquito breeding.
4. Are these aerators safe to use around docks and swimmers?
Absolutely. Many units are designed to be safe in residential and recreational environments, though you should always follow manufacturer guidelines for operation and placement.
5. Do these aerators require professional installation?
Not necessarily. Most surface aerators are plug-and-play with easy dock or float installation. If you're running 230V power or need custom mounting, we recommend consulting a pond professional.