Stocked 100 perch in my pond 4 years ago. Two years ago I caught one about 8 inches long. Super excited I was. Found only one dead last year and it was 9 inches. Have not caught any of that size, but have caught young ones from time to time so they must be reproducing. It is a mystery if they are there or not and or how to confirm. Help? FYI I stocked my LM Bass, white and black crappie, bluegill, and my channel cats all at the same time.