All-In-One Pond Fountain and Bird Bath Protector This carefully formulated water protection agent 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.