CrystalClear ClarityMax， 6 lb<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Prevents Build-Up and Removes Algae Stains on Rocks， Streams and Waterfalls</li><li>All-Natural Proprietary Treatment Blended with Natural Bacteria and Enzymes</li><li>6 lb pail treats 3，000 gallons for up to 4 months</li><li>Keeps Water Clean and Clear</li></ul></div><img src="http://ecx.images-amazon.com/images/I/51-cyCQrLXL.jpg" noproxy>