生蚝改变水质惊人，从污浊水变透明，净化水一流-视频

惊人的生蚝功效，已经被广泛用于改善水质
In the video posted by a U.S. environmental advocacy group, two tanks of dirty water are placed right next to each other with the only difference being that one is filled with oysters. About two hours pass in the short time-lapse video and the oyster-filled tank looks practically clear by the end.