Calculate your pond or future pond’s volume using the formulas below to help choose the right liner and pump. For more information on pond size and fish care, click here.
- For circular ponds, measure in feet the Diameter x Diameter x Depth x 5.9 = Total Gallons
- For rectangular ponds, measure in feet the Length x Width x Depth x 7.5 = Total Gallons
TIP! For Koi fish, there should be 5 gallons of water for every 1 in. of fish. Koi fish have a faster growth rate, so you may have to remove a few of them at a certain point.