Wow! That's disappointing. Sorry to hear that Bill. Don't know what to say. Just hope there are only a few of the undesirable species.
I guess I do have a word of hope. The GSF and the HBG are likely the most aggressive biters in the pond. So maybe if they are few in number you can catch most of them. I think I caught the few HBG that was mixed in with my main pond fish. Have not caught one for a long time. You might want to keep fishing to remove the unwanted ones in hopes they are only a few.
