Purigen® is a premium synthetic adsorbent that is unlike any other filtration product. It significantly raises redox. It polishes water to unparalleled clarity. Purigen® darkens progressively as it exhausts, and is easily renewed by treating with bleach.
Seachem Purigen Organic Filtration Resin - Fresh and
Aquarium Filter Media: Seachem Purigen - 100mL
SEACHEM PURIGEN FILTER MEDIA REMOVES ORGANIC WASTE AQUARIUM FISH
SEACHEM PURIGEN FILTER Media Removes Organic Waste Aquarium Fish
New in Box Miscellaneous Fish Tank/Aquarium Supplies, Filter Media
Seachem Indoor Purigen Organic Filtration Resin
Seachem Purigen - how to get crystal clear aquarium water
Seachem Purigen 1L - Aquaristic Online
Seachem Purigen Aquarium Filter Media to Remove Toxins
Do I Remove Purigen From My Tank After Nitrates Come Down?