Years ago, when a 200+ acre local lake was first built (small river fed), it soon became full of bullheads. You could catch them by the dozens. After two or three more years, when LMB and BC and FHC began to become common, the bullheads all but disappeared. Same with a family pond. Someone must have bucket stocked a few bullheads, thinking they were small CC. There were balls of small bullheads swimming around. After the introduction of several adult bass, the bullheads were soon gone. Others experiences may differ, but that is mine. In my opinion, white crappie and GSF are worse than bullheads in a pond.