Contact the ky dept of fish and wildlife. They have dedicated folks for just that service. As a matter of fact, you have a neighbor on Chinns Branch who did that very thing. Of course, all of his family have heavy equipment and that sure spares the bottom line. You can have your pond evaluated and recommendations will be given you, and to my knowledge, that service is free. Or at the most, very minimally expensive. Species and ratio are important with regard to volume of water. Overpopulation is common. Good luck