Longear Sunfish are small but very colorful. They are small, averaging 4 to 5 inches in length with very few fish reaching 1 pound. Longear Sunfish are mostly found in slack water of clear streams, but you can also find them in lakes, ponds, reservoirs, and estuaries. The longear sunfish has a black ear flap with some red and yellow also. They will feed on small insects and other tiny foods because of their small size.