Just wanted to post something that might be of interest. Up here in MN, we have been having trouble in our area lakes being overpopulated by bullheads, carp, and bowfins. My hometown consists of over 25 lakes in a 20 mile radius. The area lakes are definitely over run by bullheads. A few years ago, the DNR did a test by letting some catfish go in an area lake to see what whould happen. 5 years later, this lake is quietly becoming a great fishing lake. While bowfins are still abundant, the bullhead and carp population has dropped dramatically enough to where you can actually fish on the bottom with live bait for walleyes withought constantly catching bullheads. I don't know if this is something that has been done for years around the states, or if Minnesota is one of the pioneers in doing this. What do you fellow brothers think of this?