Seachem Laboratories Water Garden Oasis Pond Prime Water Conditioner 67.6 fl. oz

Pond Prime is a complete conditioner that removes chlorine chloramine and detoxifies both ammonia and nitrite. It also provides essential ions and stimulates natural slime coat. Pond Prime also enhances nitrate removal. It should be the first choice conditioner when setting up a pond adding or changing water. No other product is required to make water safe. Unlike competing products Pond Prime does not cause a pH drop. It is very concentrated: 250 mL (1 cup) treats 20000 L (5000 US gallons).