Specially formulated for larger water fountains and for indoor and outdoor waterfalls. Will help ensure clear, sparkling water that keeps water filters and pumps free from organic debris. Safe for birds, fish, aquatic wildlife, humans, pets, aquatic plants and lawns. All natural ingredients. Biodegradable and nontoxic. 16 oz. Will help ensure clear, sparkling water that keeps water filters and pumps free from organic debris Safe for birds, fish, aquatic wildlife, humans, pets, aquatic plants and lawns All natural ingredients Biodegradable and nontoxic