Aquascape Pond Starter Bacteria helps to quickly establish the biological ecosystem for new ponds and spring start-ups, helping to support the nitrogen cycle and provide clean and healthy water conditions. Starting your season right with Pond Starter Bacteria will allow you to spend more time enjoying your water feature and less time maintaining it throughout the year. Each 8 ounce bottle treats 20,000 gallons of pond water, and the easy-to-use pump top accurately measures 100 gallons of treatment per pump, making treatments easily measured and accurate. Pond Starter Bacteria is completely safe for fish, plants, pets, and wildlife. Aquascape is passionate about the products we produce, providing unique products, designs, and features that stand above the competition.