Keep your outdoor and indoor fountains beautiful and running smoothly with CareFree Enzymes Fountain Protector. This all-natural, concentrated formula is the ultimate maintenance solution, safely preventing the stains, slime, and scale that can plague decorative water features. Safe for all fountain surfaces, including ceramic, stone, resin, and metal. Product Details: Prevents Algae, Slime & Stains: Our powerful enzyme formula works continuously to prevent the growth of algae and the slimy biofilm that causes stains and clogs, keeping your fountain's surfaces pristine. Combats White Scale Buildup: Helps to prevent the buildup of white calcium deposits (white scale) on fountain surfaces and pumps, which is especially common in areas with hard water. Safe for Birds, Pets & Wildlife: A core promise of our brand. This 100% non-toxic formula contains no harsh chemicals and is completely safe for any birds, pets, or wildlife that may drink from or bathe in the fountain. Protects Pumps & Extends Life: By preventing the buildup of slime and scale, this protector helps keep your fountain pump running efficiently and prevents clogs, extending its life. How It Works: This formula uses a proprietary blend of natural enzymes and chelating agents. The enzymes safely break down the microscopic organic debris that acts as a food source for algae and slime. The chelating agents bind to minerals in the water, preventing them from forming hard white scale deposits on surfaces. Directions for Use: Start with a clean fountain. Add one capful per 5 gallons of water,1/2 capful per 2-3 gallons of water, 1/4 capful per 1 gallon of water, and a couple of drops for tabletop fountains. Reapply once a week, or with each water top-off, to maintain clean and clear water. Note: Overdosing may cause foaming--use less to obtain desired results. Made in the USA.