McGrayel Fountec 8 OZ

Organic polymers that keep water clean, clear, and algae-free. Kills & inhibits algae and bacteria. Non-staining. Safe for birds, plants, animals, but NOT FISH - use in tabletop fountains. Treats 300 gallons per ounce. Use 1 drop/gal or 1 tsp per 100 gallons. The natural effect of Fountec's polymers on water tension make it an excellent deterrent for control of mosquitoes, flies, and wasps in fountains, water gardens, and birdbaths.