MarineDepot.com's Best Filter Media of 2013 is....

SeaChem Laboratories Purigen

SeaChem Purigen is a premium macro-porous synthetic polymer that removes soluble and insoluble
impurities from water at a rate and capacity that exceeds all others. It is designed for both marine and freshwater use.

Purigen; removes proteins, nitrites and nitrates, ammonia, and a broad spectrum of organics, yet its
impact on trace elements is minimal. It significantly raises redox and polishes water to unparalleled clarity.