Has a higher dose of Anjon"s high potency bacteria strain that is activated by sunlight and stays active in cold temperatures. * Infused with nutrients which promote the formation of beneficial bacteria enzymes that boost the ecosystem of the pond. * Breaks down leaves and other forms of organic debris over the winter; prepares your pond for spring! * Highest potency bacteria count product available on the market. Safe for fish & aquatic plants. * This is a 16 ounce bottle. It treats up to 8,000 Gallons.