Pondworx Pond Bacteria - Formulated for Large Ponds， Water Features and Safe for Koi - 1 Gallon<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Eliminates muck， dead leaves， odors and other organic matter that can harm a pond or lake</li><li>Super charges naturally occurring bacteria to consume micronutrients</li><li>Safe for humans， fish， livestock， pets， birds， swimming， consumption and irrigation</li><li>1 gallon treats 1 surface acre， 4-feet to 6-feet deep， helps break down dead leaves and weeds on the pond floor</li><li>This product is not meant for algae treatment</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41R88ngsXOL.jpg" noproxy>