A science-based, chemical-free approach to managing many common forms of pond algae.
Ultrasound can provide excellent algae control in the right pond — but algae species, phosphorus levels, pond conditions and equipment selection matter.
A simple overview of what low-power ultrasound is designed to do in a pond.
A floating or shoreline-mounted transducer continuously sends low-power ultrasonic frequencies through the pond.
Selected frequencies interact with cellular structures and/or buoyancy mechanisms used by susceptible algae.
Affected algae may have difficulty maintaining their preferred position in the water column and accessing light.
Continuous treatment can help suppress susceptible algae without repeatedly applying conventional algaecides.
Yes — but not every pond and not every algae species is a good candidate.
The right solution starts with the right information. Identify the algae and understand the water chemistry before investing in ultrasound.
Different algae respond differently to ultrasonic treatment.
Green water and suspended algae.
Surface films, scums and potentially harmful blooms.
Mats, strands and floating growth. Response varies by species.
Branching forms such as Pithophora and Chara can be especially difficult to control and may require another strategy.
Ultrasound can control susceptible algae, but it doesn't remove phosphorus entering the pond, eliminate accumulated organic muck or correct low dissolved oxygen.
For difficult ponds, the best long-term strategy may combine ultrasound, aeration, beneficial bacteria and nutrient management.
Algaecides can still have a role when rapid knockdown is necessary, but they don't address the conditions that allowed the algae to grow.
For ponds where ultrasound is a good fit, the Pulsar 4400 provides low-power, continuous ultrasonic treatment. Equipment selection should be based on pond size, shape, algae type and site conditions.
View the Pulsar 4400 at Pond Algae Solutions →
Equipment and support provided through Pond Algae Solutions.
Straight answers to common questions about ultrasonic algae control.
It can work very well on susceptible algae when the pond, water chemistry and system coverage are appropriate. It is not equally effective on every species or every pond.
Some filamentous species respond better than others. Correct identification is important before choosing ultrasound.
Pithophora and Chara are difficult targets and should not be assumed to respond reliably to ultrasound.
Low-power systems intended for pond algae management are designed for continuous operation around normal pond life. Product specifications and application guidance should still be followed.
No, but aeration can address different pond problems, particularly oxygen and circulation. Some ponds benefit from using both technologies.
In a suitable pond it may greatly reduce the need for repeated algaecide applications. Situations requiring rapid knockdown may still call for another treatment approach.
Start with the pond — not the equipment. Tell us about your pond, the algae you're dealing with and any water testing you've already done.
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