Brightwell Aquatics ABAKALK450 Kalk Plus 2 Dry Salt Water Conditioners for Aquarium， 15.9-Ounce</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>The advanced supplement provides calcium， and magnesium</li><li>Improves water clarity and eliminates cloudy water quickly</li><li>Specially formulated for marine aquaria， Not recommended for freshwater aquaria</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/51H3x0MmCnL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/41W3Uh9sgBL.jpg' noproxy></br><img src='http://ecx.images-amazon.com/images/I/3140vvt4G9L.jpg' noproxy></br>