Chemi-Clean - 2 g</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>Cleans many types of stains from cyanobacteria</li><li>Works in fresh and salt water</li><li>Safe for all fish， corals， invertebrates， nitrifying bacteria and macro algae's.</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/51aX8Du%2BanL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/31gXLbYSX7L.jpg' noproxy></br>