All-in-one protector for fountains, and ponds Made from natural, bacteria-free plant enzymes100% biodegradable Safe for wildlife and pets Maintains water clarity and prevents sludge build-upChoose between 4 oz. or 16 oz. The All-In-One Pond and Fountain Protector is a carefully formulated water protection agent which can be used for all of your outdoor clean and fresh water needs. It works with still slow-moving and fast-moving water that contains fish aquatic plants and/or amphibians. Maintains water clarity and prevents sludge build-up. This product prevents stains organic contaminants and mineral deposits. It is 100% biodegradable & non-toxic and it is made from natural bacteria-free plant enzymes. Just one capful a week keeps water clean and clear naturally. It is safe for wildlife and pets that may drink from the water. This enzyme is a simple, natural, and 100% biodegradable way to keep your pond or fountain water clean. It's safe for wildlife, pets, and fish and is made of bacteria-free plant enzymes to maintain water clarity and prevent sludge built-up. No matter if your water is a fast-moving or still, this little bottle of magic will take care it in no time!