Seachem Purigen 250ml

Seachem Purigen is a unique macro-porous synthetic polymer that removes soluble and insoluble impurities from marine and freshwater at a rate and capacity that exceeds all others by over 500%. It controls ammonia, nitrites and nitrates by removing nitrogenous organic waste that would otherwise release harmful compounds. It clears haziness and polish water to unparalleled clarity. Seachem Purigen darkens progressively as it exhausts, and is easily renewed by treating with bleach. It has minimal impact on trace elements and significantly raises redox.