Surface aerator - Aquitechnics - High Performance for natural pond - Pond foam generator

Is your pond lacking oxygen, are your fish gasping for air at the surface, does the water smell bad, or is hot weather making your pond unstable? The Aquitechnics floating aerator is a surface oxygenating emulsifier designed to quickly provide massive oxygenation to large volumes of water: natural ponds, lakes, swimming areas, koi ponds, and high-capacity bodies of water.

Thanks to its wide mushroom-shaped fountain, it sprays water upwards, significantly increases the contact between water and air, drives out harmful gases, and sets the entire body of water in motion. It is one of the most effective solutions for sustainable oxygenation of a large surface pond while providing a real decorative effect.

Why is oxygen vital for your pond?

Dissolved oxygen determines the entire life of a body of water: fish respiration, activity of purifying bacteria, degradation of organic matter, and general biological balance. When it drops—especially during hot weather, at night, or in ponds rich in silt—fish become stressed, bad odors appear, and anaerobic fermentation takes hold at the bottom.

These oxygen-poor zones can promote the accumulation of undesirable gases like hydrogen sulfide, methane, or CO₂. By strongly agitating the surface, the Aquitechnics aerator acts on two essential levers: it provides large quantities of oxygen and promotes degassing of the body of water.

The desired result: healthier water, better protected fish during critical periods, and a more stable ecosystem.

Why choose a surface oxygenating emulsifier?

• Massive and immediate oxygenation — ideal during heatwaves, thunderstorms, heat spikes, or high fish stocking density.
• Fish protection — particularly useful for large ponds, koi ponds, and heavily populated bodies of water.
• Expulsion of harmful gases thanks to intense agitation and the splashing of water at the surface.
• Homogeneous circulation throughout the entire body of water: the waves generated limit stagnant and oxygen-depleted zones.
• Less favorable conditions for algae: by breaking the stagnant surface film and improving aerobic degradation of organic matter.
• Integrated decorative fountain: a powerful water feature that enhances ornamental ponds, parks, private lakes, and natural swimming areas.

In what cases should you install this surface aerator?

• Your pond exceeds several hundred m².
• Your fish regularly come to the surface to gasp for air.
• Your water heats up significantly in the summer.
• Your body of water contains a lot of silt, leaves, or organic matter.
• You want to protect your fish during hot weather.
• You are looking for a visible, effective, and decorative solution.
• You want to improve oxygenation without installing only bottom aeration.

How does the Aquitechnics aerator work?

A high-performance axial propeller sets the water in motion and projects it to the surface. The angle of the jet's trajectory and its impact on the water are designed to maximize gas exchange with the atmosphere and propagate waves outward.

The device continuously draws oxygen-poor water from the lower layers, brings it up, and enriches it upon contact with the air. The expulsion angle is designed to avoid flow short-circuiting: water that is already oxygenated is not immediately re-aspirated. Oxygenation thus remains more homogeneous, from the center of the device to the banks.

Two versions depending on your use

Surface motor

The motor is housed in a polyethylene casing on the float, above the water. This version generates a higher and narrower fountain, which is very aesthetic. It is perfectly suited for ornamental ponds, parks, visible bodies of water, and areas where the decorative effect is important.

Operation remains discreet: from the outside, you mainly hear the murmur of the water.

Submersible motor

The motor is immersed under the float, making it much more visually discreet. This version is ideal for natural bodies of water, swimming areas, or locations where you wish to limit the visual impact of the installation.

It produces a lower and wider fountain. It is also the version adapted for winter operation to locally limit ice formation. The IP68 stainless steel motor is designed for continuous operation.

With nearly identical performance, oxygenation, and consumption, the choice between the two versions depends mainly on the desired aesthetics, the level of discretion sought, and winter use.

Technical specifications

Minimum water depth: 0.60 m. Fountain height: 0.70 to 0.85 m depending on version and installation conditions. 230 V power supply for the 400 model or 230/400 V depending on the model. Approximate dimensions: ø 80 cm, height 75 cm. Approximate weight: 30 kg. A submersible motor version is available for each power rating, with slightly higher flow rates and active zones depending on the configuration.

Which model should you choose?

These surfaces are provided as an indication. Depth, fish density, the presence of silt, water temperature, and organic load strongly influence sizing. If in doubt, contact us: at Aquishop, we can help you choose the aerator best suited to your body of water.

Design & quality

• Protective basket, fittings, motor shafts, and hardware made of stainless materials.
• Robust polyethylene float, available in blue or green depending on configuration.
• Stainless steel strainer basket to protect the propeller from fish and debris.
• Mesh sizes available: 9.5 mm standard, 5.5 mm, or 18 mm as needed.
• Motor protected against thermal overload.
• Device delivered ready for use with cable and protection device.
• Proven design for continuous operation and long service life.

Installation & safety

The floating aerator is positioned using two ropes tied to the banks. It must never be anchored or pulled by the power cable. The power supply must be protected by a 30 mA residual current circuit breaker and connected outside of flood-prone areas.

Maintenance remains limited: clean the strainer basket from time to time, check for the absence of debris around the propeller, and check the proper functioning of the device at least once a year. The aerator must never operate out of the water.

Surface emulsifier or bottom aeration?

• A surface oxygenator is ideal for quickly providing plenty of oxygen, creating movement, and securing a large surface area of water. For a deep, very silty, or highly stratified pond, it may be relevant to supplement it with bottom aeration to also work the deep layers.

Why does Aquishop recommend this solution?

We recommend Aquitechnics emulsifiers when a large pond owner is looking for a reliable, visible, and powerful solution to improve oxygenation, limit stagnant zones, and secure their body of water during critical periods.

It is a particularly interesting solution for large fish ponds, natural ponds, swimming areas, private lakes, and all bodies of water where oxygen becomes a limiting factor.

A large body of water only remains alive if oxygen circulates permanently. By offering powerful oxygenation, efficient agitation, and an elegant fountain, the Aquitechnics emulsifier contributes sustainably to the good biological balance of your pond while securing your fish during the most critical periods.

For years, we have been installing and advising on oxygenation systems for private ponds, swimming areas, lakes, and bodies of water of several thousand square meters. Aquitechnics emulsifiers are among the equipment we recommend most when the goal is to quickly provide a lot of oxygen over a large surface.

Cyanobacteria in your pond?

Greenish-blue water, surface mats, or a risk to swimming? Combine your Aquitechnics surface aerator with OASE CyanoClear for rapid action against cyanobacteria and their toxins. The agitation generated by the emulsifier optimizes the distribution of the treatment where cyanobacteria naturally concentrate: at the surface.

👉 Discover CyanoClear and restore a healthier pond quickly.