We carry the F1 bass fingerlings. These are available in the spring of the year (May) Bass should be stocked at a rate of 35-50 per acre. For trophy bass ponds you want to stay closer to the 35 per acre. Bass are used to control bluegill/bream populations in ponds and lakes. It is necessary to harvest 15-25 bass per acre per year beginning after 1st year of stocking to keep bass population in balance and growing. Normal life expectancy for bass is 5-7 years.