The Conservation Department stocks trout in each of the trout parks every evening from the day before the March 1 opener through Oct. 30. Tag sale estimates determine a daily stocking rate average of 2.25 fish per expected angler. Except on opening day, three fish are stocked for every expected angler. From March 1 to Oct. 31, the parks will collectively sell more than 400,000 tags and stock more than 900,000 fish. These fish will average about 12 inches long over the season, but some variation occurs. Dozens of lunkers weighing upwards of 3 pounds are stocked each year. A few tip the scales at more than 10 pounds.