Quick thought (although I have never tried this)!
At the Ag. Expo last week, I had a gentleman come up to me who needed to replace the carp in his pond. He had been having the same problem with his aged carp eating pellet feed. Do you know how he caught all the old ones? He put a turnip leaf on a hook, and then caught the fish out one at a time. I thought he was pulling my leg until he showed me a series of pictures. He just floated the turnip leaf while pellet feeding, and BOOM. The carp bought it hook, line, and no sinker.
Just a thought in case you wanted to stay away from chemicals.
Deb
