Live filter bacteria to treat 4000 gallons.
Use weekly for a healthy, nitrite and ammonia free pond. Establishes and maintains a filter or a natural pond, and helps remove sludge from older ponds. Adds the correct micro organisms to your pond and helps to acheive balance rapidly. Use double dose first to start the season or new pond, and if ammonia and nitrite are present. 10ml of this product treats 40 gallons.