I bought an old handcranked meat & sausage grinder off dabay. Shipping was more than the winning bid. I have ground up 6" bream & put them back in the pond. I was surpised that the fishburger was not devoured quickly by small fish. It disappeared slowly. I would not do this in a small pond. I have 3 acres & did not have to worry about the ground fish not being eaten & contaminating the pond.