Water purifying apparatus comprised of flexible plastic strip media consisting of clusters of flexible plastic strips connected with a floating support cable to be used in water or waste water treatment vessels to provide surface area for the growth and accumulation of organisms, namely, aerobic and anaerobic bacteriological micro-organisms useful in the treatment of water and waste water for removing soluble and insoluble organic waste contained in the water and waste water

artificial reef system comprised of corrugated nonfabric modules to provide a protective reef suitable for enhancing marine life