Eddie, its not the end of the world. In all likelihood, they got into your lake through stock contamination or via another connecting or nearby body of water. I wouldn't panic. I have seen many a fine bass and bluegill pond that has GSF in them. In my experience, the GSF tend to stay low in numbers. They just don't compete well with other fish. GSF are a fish that does well in small creeks where competition with other species is limited. Often in ponds and lakes, I see them hugging rocky areas. If you have a rocky area to your pond, flip a small bait near a rock crevice, often that is where the few GSF in your pond will be hanging out.
