AlgaeControl.US, based in Charleston, SC is a Worldwide Distributor of Hydro BioScience ultrasonic algae and biofilm control devices - Quattro-DB® and Mezzo-DB®. We currently have over 50 authorized dealers nationwide providing you a wide variety of expertise; from water garden experts to pond and lake biologists to industrial wastewater engineers. Using sound “green” water management practices positively impacts everyone’s water quality and helps protect and preserve our environment, fish and wildlife.

Company details

2398 Clements Ferry Rd., Suite W. , Charleston , South Carolina 29492 USA
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Business Type:
Industry Type:
Water Treatment
Market Focus:
Internationally (various countries)
Year Founded:
$1,000,000 US - $10,000,000 US

The Hydro BioScience algae control devices have been engineered with state of the art control technology including comprehensive dual bandwidth frequency coverage and multi-directional ultrasonic output having 360° capability for 150 meters control of green algae and diatoms (17.5 acres or 7 hectare) and 400 meters control for blue-green algae with gas vesicles (120 acres or 50 hectare) for the Quattro-DB®.  The unit has voltage restoration control that allows long cables from shore that maintain full sonic output (longest to date is 400 meters).  There is also a self-powered solar floating solar array system that you simply anchor in the center of the treatment area.  No programming required.

How Does Ultrasonic Algae Control Work?

Our devices float just below the surface and operate 24-hours a day providing coverage for up to 17.5 acres depending on conditions. Multiple units can be installed for larger bodies of water such as lakes and reservoirs. It is easy to install, requires very little maintenance, and uses less than 12 average watts of power.

Is Ultrasound Safe for me to use around my Fish?

Yes, ultrasound has been proven time and time again to be extremely safe for fish and other aquatic wildlife. The emitted frequency range and intensity level is not harmful to fish and other wildlife. We have of course personally tested the devices in a variety of situations such as Koi ponds and other types of fish ponds and not only noted zero ill affects, but the fish would swim up to the unit, look it over and then eventually swim away. There has been no indication whatsoever of any kind of stress or stress related reactions caused by our applications...other than a bit of curiosity by the fish themselves!

Taking Chemical Free Algae Control Solutions to New Levels!

Chemical-Free Ultrasonic Algae Control: AlgaeControl.US has cooperated with Diversified Power International to assist in the development of the Quattro-DB® (4-way output device) and the smaller Mezzo-DB® (2-way output device).  This new generation of ultrasonic technology is being used with unprecedented success in WWTP, Lagoons, Potable Water and Irrigation Reservoirs, Cooling Towers, Water Storage Tanks, Ponds, Lakes, Swimming Pools, Water Gardens, Koi Ponds, etc. Now with a total of 2024 frequencies generated these devices are the most effective on the world market. AlgaeControl.US is a Worldwide Distributor for Diversified Power International's Hydro BioScience brand products.

Research studies have been conducted by the Environmental Protection Agency, The Department of Natural Resources, Texas A&M University, the US Navy, and the US Department of Agriculture, as well as many city and town municipalities across the country. The product has been taken to new levels of performance by generating 2024 frequencies in two important algae control bandwidth frequencies.

The AlgaeControl.US products are currently offered through a diverse network of over 50+ authorized dealers throughout the United States, Canada, France, New Zealand, South Korea, Japan, China, Singapore, Malaysia, Guatemala, Colombia, Norway, and Australia. Since the water industry is so vast, each one of our dealers typically specialize in a particular areas of expertise which include: Design/build Koi ponds and water gardens, decorative fountains, and swimming pools, irrigation systems for agriculture and horticulture, organic farming and hydroponics, industrial potable water and waste water, commercial pond management businesses, aquaculture fisheries biologists, and lake and stream planning and design specialists.

It is our intent to continue to establish the ultrasound product as one of the best environmental practices available for algae and biofilm control on the market today. We hope that our sincere efforts will eventually make a significant impact on our eco-system and improve our way of life; by removing harmful chemicals from our environment where we all stand to prosper. Join us today!

What are Algae?

Algae are a diverse group of photosynthetic plants that occur in a wide range of environmental habitats. As plants they contain chlorophyll and have simple reproductive structures. Unlike most plants, their tissues are not differentiated into true roots, stems or leaves. They range from single cells to fairly complex multi-cellular organisms. Some algae, like Chara, have such a complex structure that they are mistaken for vascular plants.

An individual microscopic single cell algae plant is about 0.001 mm in diameter or about 25 times smaller than a human hair. Algae are found throughout the world and are a general nuisance in water treatment plants, drinking water supplies, irrigation reservoirs, fish ponds, water impoundments, water gardens, swimming pools, and cooling towers.

These microscopic single-celled forms of plant life thrive in sunshine. They are present on vegetation, in the air, in the soil, and in water. Their microscopic spores are continuously introduced into pools and other bodies of water by wind, dust storms, rain showers, etc.

They grow rapidly in stagnant waters when exposed to sunlight and temperatures above 39ºF. They can form objectionable slime and odors. They can interfere with filtration systems and irrigation nozzles. They can greatly increase chlorine demand in pools and cooling tower systems. Phosphates and nitrates in the water from fertilizer and land runoff encourage their growth.

Algae have three basic forms: Planktonic, filamentous and macrophytic. Planktonic algae are single-celled, microscopic plants that float freely in the water. When these plants are extremely abundant or an algal bloom occurs, they make the pond water turn green. Less often, they can turn the water other colors, including yellow, gray, brown or red.

Filamentous algae are sometimes referred to as 'thread algae' or 'pond scum.' Filamentous algae occur as fine green threads that form floating mats, which are often moved around the pond by wind. These algae are also commonly found attached to rocks, submerged trees, other aquatic plants and boat docks.

Macrophytic algae resemble true plants in that they appear to have stems and leaves and are attached to the bottom. A commonly-occurring macrophytic type of algae is called chara or musk grass due to its strong musky odor. Chara feels coarse to the touch, because of lime deposits on its surface, earning it another common name -- stonewort.

Algae Problems

For the most part, algae are of little value to your pond or lake. The filamentous and planktonic forms can reproduce at phenomenal rates and sudden die-offs can cause oxygen depletion. The necessary oxygen required in fish ponds or lakes can be supplied by other aquatic plant life in the water basin and these aquatic plants typically flourish without algae competition.

Algae problems are usually caused by an overabundance of nutrients (nitrogen and phosphorous) in the pond.

From the moment a pond is built, it becomes a settling basin for nutrients washing in from the land or watershed that drains into it. As a pond ages, more nutrients accumulate in it making it more susceptible to algae problems. Runoff from fertilized fields, lawns and pastures, feedlots, septic tanks and leach fields accelerate nutrient loading and algae growth in the pond.

Excessive algae growth will starve or strangle other forms of aquatic plant life, as well as block out sunlight necessary for their proper growth. Taste and odor problems in drinking water and sometimes even fish kills are associated with excessive blooms of planktonic algae. Filamentous algae and macrophytic algae often form dense growths that make fishing, swimming, and other recreational uses nearly impossible. Total coverage can restrict sunlight penetration and limit the production of oxygen and food items necessary for good fish growth. When algae abundance interferes with the intended use of the pond, a control method should be considered.

Algae Control

Algae control methods do not always give the desired results. For example, mats of filamentous algae may be removed with a rake, screen wire, or similar devices; however this control method is very labor intensive and provides only temporary control. In some instances, the algae may seem to grow as fast as they are removed. Before using chemicals, you should consider potential contamination of domestic water supplies and the waiting periods for watering livestock, eating fish, swimming and irrigation. In general, you must have a license to dispense many of the chemicals used as algaecides.

A 'biological control' typically uses one form of life to control another or the balance of life is manipulated in some way to adversely affect an undesirable pest. It is wise to be very cautious when deciding on the use of a biological control. It can backfire when the introduced species becomes more of a problem than the original pest. One such agent is barley straw that has been used with mixed success. It is generally classed as an algistat or growth inhibitor, rather than an algaecide or algae killer. It appears to have more effect on planktonic algae and has in some tests caused the filamentous algae growth to accelerate. At any rate, it may help but will not totally eliminate the problem.


Now there is a better way to control algae. It is environmentally friendly, cost effective and chemical free. The method is not revolutionary technology. It was discovered decades ago that ultrasound would destroy algae cells. However, at the time of the discovery, ultrasonic wave generators were too costly to make it a marketable product. But today, underwater ultrasonic sound wave generation that is inaudible to and no threat to people, animals, fish or plants is now available and affordable for those who want to get rid of algae and other harmful micro-organisms such as destructive root parasitic fungi, Fusarium and Pythium.

The new Hydro BioScience Quattro-DB® and Mezzo-DB® control about 95% of algae types without using chemicals.  The method of control is called 'critical structural resonance' and is similar to how a crystal glass can be broken by playing its natural frequency back to it.  The sound resonates the glass and its vibration intensity increases as the sound waves continue to build intensity by reinforcing the sound vibration inside the glass structure.  In green algae and diatoms, the vibration affects the inner cell wall called a plasmalemma and causes it to tear.  Note the outer cell wall is not broken.  In blue-green algae, the control is different with extremely tiny gas vesicles that are only a protein layer thick are damaged in a similar way.  This causes them to release the gas inside the vesicle into the inner body of the cell.  Again the outer cell wall is not broken, but it will let the gas slowly escape in three to four days.  When complete, the buoyancy loss will not let the cell get to the surface to get sunlight.  Ultimately, this causes the cell to slowly die as sunlight is essential to growth.