I have a marsh/pond on my property that is infested with ducks and geese, mallards,woodies,some black ducks and teal, canadas. the marsh is just over an acre, the water is only 3 to 4 inches deep. the bottom is mush you can sink up to your neck in spots. does anyone know what i can get to grow in this to keep the ducks coming back after we start shooting. now when we start they go light in the river and dont come back. need something that will grow and keep them coming back so the hunting lasts longer than just an hour or two. any help would be greatly appreciated.