| Pond Size | We recommend: |
| 10-700 gallons | 1 Barley Pad |
| 700-2,244 gallons | 1 Barley Ball |
| 2,245-4,488 gallons | 2 Barley Balls |
| 4,489-6,732 gallons | 3 Barley Balls |
| 7,000-10,000 gallons | 1 Barley Strip |
| To calculate gallons: Length (in feet) x width x average depth x 7.5 = gallons | |
For ponds that are from 700 to 2,224 gallons, use our Barley Ball. For water gardens and small ponds that are from 10 to 700 gallons, use Barley Pads