Choose the package closest to your pond's water volume.The 500 gals package will treat a pond with 500 gallons for 3 months. Cool Ponds signature products keep your pond looking great all season! Grab a bundle to use for the next three months. Every Summer Pond Care Bundle Includes:✔️BioClear and Clean✔️BioClear Extreme✔️Remove Away Plus✔️3 Months of Treatments✔️5% Bundle Savings For Best Results: Use weekly when the water temperature is above 50 degrees Water should be well aerated. These are products are beneficial bacteria and need dissolved oxygen to live. pH should be between 6.5 to 8.5 Three month bundles! Calculate your water volume and get a handle dosage chart here.