Cutrine Plus Professional Strength Aquatic Algaecide - 1 Gallon<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Contains a professional grade 9% metallic copper equivalent</li><li>Contains chelated copper which stays in solution to continue controlling a broad range of algae well after application.</li><li>Waters treated with this product may be used immediately for fishing， swimming， livestock， or irrigating or drinking.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/512MAXQcerL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/31rqhyCdiXL.jpg" noproxy>