Once fry are feeding, transfer them to a nursery pond.Numbers of fry stocked into a pond should be estimated by volume or weight. Stocking density depends on the size of fingerlings desired at harvest. For example, stocking 10,000 fry per acre will yield 7- to 10-inch fingerlings in about 150 days. Stocking 100,000 fry per acre will yield 3- to 5-inch fingerlings in about 150 days.