Here's my story. Once the grass carp eliminated all vegetation in culture ponds, we found that they readily would feed on floating pelleted food. Once they were trained to the pellets, we took our fly rods, and tied on a wooly worm or a sponge rubber spider from which we had pulled off the rubber legs. We'd toss out the food, and then make a cast. Perhaps this sounds a little less than sporting, but let me tell you, grass carp put up an amazing fight on a fly rod!! :-)
Dave