I did not tell you this but I have known a guy that ties a lead sinker to some pretty strong mono and a floating fish imitation lure, like a floating Rapala. Leaves it in there where the herons feed about 6 inches underwater. Sometimes shallower. I've seen a goldfish lure also. That one does not have hooks. But treble hooks can be put into it, I would think. Heron and lure seem to go away long term.
