Aquascape Wetland Pond & Lake Bacteria Professional Grade helps to provide clean, clear, and healthy water conditions in larger water features, significantly reducing pond maintenance. Each bottle is packed full of eight pure strains of concentrated bacteria and is completely safe for fish, plants, pets, and wildlife. Our bacteria will effectively reduce fish waste, organic plant material, sludge, and excess nutrients in your pond, allowing you to spend more time enjoying your water feature. The included measuring cup and dosage guide makes application simple and easy. Each bottle contains 1 gallon (3,78 litres) of treatment and treats up to 768,000 gallons (3,500,000 litres).