Sounds like I have a new mission-cull the bullheads. Just when I thought everything was going so well.
I did see a ball of little black catfish minnows last year. I was surprised in that I read that CC can't reproduce in small bodies of water. Guess it was the bullheads. A VA state biologist even wrote that reproduction of CC in impoundments under 250 acres was very marginal. I found that surprising.