For a healthy, beautiful pond, use Pond Balance to combat string algae, and reduce stringy organic debris in garden ponds. This Advanced Pond Care System is available in 3 sizes: The 8751 package treats ponds up to 3600 gallons, the 8752 package treats ponds up to 10800 gallons, and the 8753 package treats ponds up to 67100 gallons. The 67100 gallon industrial-sized bucket is ideal for landscapers. Absolutely simple to apply, mix in a bucket, and add to your water. You will notice and improvement in your water quality in the following days. It may be necessary to manually remove the dying string algae afterwards, or it will decay and start the cycle over again. Pond Keeper Hints: Unbalanced pond conditions can contribute to typical problems, such as diminished stream flow, fouled pump intakes, and clogged filters. The secret of a beautiful, healthy pond is in the creation of naturally balanced pond conditions. A pond balance involves water conditions that stimulate strong plant growth. Nutrients are utilized to create a natural, un-fouled environment. It can be taken to multiple sites for treatment of stringy organic debris. Pond Balance is not temperature sensitive - will work at any water temperature. Pond Balance has been the popular choice of water gardening enthusiasts for many years. Manufactured in England.