apparatus to treat pollution in rivers , streams , lakes , bays , ports and all bodies of water , employing as methodology wetland plants or macrophytes growing atop a wire or rigid frame basket filled with polygons or other irregular shaped objects of various configurations . the root system of the macrophytes are merged with and grow down amid the substrate composed of small polygons , other irregular shaped hollow , plastic , ceramic objects or other materials . the substrate provides nutrients , oxygen and sanctuary to bacteria , thereby reducing and eliminating pollutants in all bodies of water .