We recommend to only stock hatchery raised Black Crappie. White Crappie have the ability to overpopulate. The best way to identify crappie is by the number of spines on their dorsal fin. The Black Crappie has 7-8 dorsal spines and the White Crappie has 5-6 dorsal spines. Be sure to stock Fathead Minnows in the spring and the fall to provide adequate forage for Black Crappie.