Como Park Zoo and Conservatory’s Horticulture Department has been using United-Tech’s BZT Aquaculture and Waste Digester products for close to 15 years to combat algae in all of our water gardens both inside and outside with great success. With the helpful guidance of the company owner we have developed a program that allows for efficiency in the use of the products with clear water as our result. We are grateful to have a natural product that is safe for all the living things that come in contact with it.