A premium synthetic polymer unlike any other.
Use at start-up and whenever adding or replacing water
Detoxifies nitrite and nitrate and provides a protective slime coat for your fish
Removes soluble & insoluble impurities from water
Seachem Purigen for Freshwater & Saltwater, Treats 100 Gallons, 2.1 oz
Specification: Seachem Purigen Organic Filtration Resin
Amazon.com Price: $8.23 (as of 17/10/2021 19:32 PST- Details) Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.