a school of bluegill sunfish

algae anal and animal aquarium artificial back bed behind bluegill bream bright brim calm caudal clear cliff color copper dorsal enviroment far fin fish fresh freshwater gill gracefully growth habitat huge illinois large life lit log made man mississippi natural nature nose paddlefish paired pebbles pectoral pelvic river round safari sand sandy scales school shape side small species state sun sunfish swim swimming tail the tree underwater water with yellow