Enviro-Tablets™ AquaCare™ 500 Pond and Aquarium Water Maintenance<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Cleans and clarifies water in Aquariums and Ponds up to 500 gallons. Safe for domestic Koi and fish ponds， commercial lakes and commercial shellfish ponds.</li><li>Removes and eliminates Odors and organic sludge by boosting filter bacteria colonies. Eliminates Algae and Blanket Weed.</li><li>Saves Money and Time-Reduces manual cleaning time， requires less Aeration and cleans the entire filter system of the pond. Good for MULTIPLE MONTHS of Treatment!</li><li>Aids Fish Health-Probiotic activity prevents parasite establishment， increases dissolved oxygen and neutralizes ammonia.</li><li>Environmentally Friendly， Non-Hazardous and safe for domestic Koi and fish. 100% All Natural - Completely Safe to Handle!</li></ul></div><img src="http://ecx.images-amazon.com/images/I/516wIzsCOBL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51wReJxGFlL.jpg" noproxy>