Heard about this has anyone used it? The state-of-the-art, ultrasonic algae control device that gets rid of algae without harming other aquatic life. The unit floats just below the water's surface and kills algae by producing a precise frequency of ultrasonic waves that disrupts and destroys the cellular functioning and structure of the algae. The easy to use and is safe for all fish, plants, and other aquatic life, and it can even help lower pH and TSS. A safer and more cost-effective water treatment than chemical algaecides for pools, reservoirs, fish and farm ponds, lakes, lagoons, tanks, and many other water management applications.
http://www.lakeweeds.eventwebsitebuilde ... ntrol.html
Pete