So, does it live up to the hype? I'm not sure if it is as great as some reviews made it out to be, but clarity is certainly improved with the Purigen.
SEACHEM Purigen Ultimate Filtration for Marine & Freshwater Aquariums reviews
Purigen is a premium synthetic adsorbent that is unlike any other filtration product. It is not a mixture of ion exchangers or adsorbents but a unique macro-porous synthetic polymer that removes soluble and insoluble impurities from water at a rate and capacity that exceeds all others by over 500%. Purigen controls ammonia nitrites and nitrates by removing nitrogenous organic waste that would otherwise release these harmful compounds. Purigen's impact on trace elements is minimal.
Seachem Purigen Ultimate Filtration for Aquariums, 2.1-oz Bag
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Using Seachem Purigen to clear up a cloudy tank
Purigen = Magic Rolande's Ramblings
Seachem Purigen Review
Seachem Purigen Ultimate Filtration 100 ml. Bag Aquarium Fish Tank Filter Media
Seachem Purigen - 20 L
Seachem Purigen - Ultimate Filtration - 500ml (Treats 500 Gallons - Regenerable)
Seachem Purigen Review – A replacement or a companion to activated carbon?