Seachem Laboratories Purigen- 100ML In Mesh Filter Bag

If you're looking for an alternative to activated carbon, you'll love SeaChem Purigen.

Purigen is a premium synthetic adsorbent that is unlike any other filtration product on the market. It's a unique, macro-porous synthetic polymer that removes soluble and insoluble impurities from water at a rate and capacity that exceeds almost everything else out there by a wide margin! 

You'll easily remove discolorations caused by tannins (boo!), proteins, nitrites and nitrates, ammonia, and a broad spectrum of organics, yet its impact on trace elements is minimal. It significantly raises redox. It polishes water to unparalleled clarity.  Purigen darkens progressively as it exhausts, and is easily renewed by treating with household bleach. A 100 mL bag of Purigen purifies and polishes up to 100 gallons of water for up to six months. We love this stuff not only because it performs so well, but because it performs for so long! 

Purigen comes in a convenient, easy-to-use mesh bag that you can easily place in any power filter, canister, or sump.

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