Seachem Purigen 100mL Bagged Part # 165

Premium synthetic adsorbent, 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%

• For freshwater & saltwater aquariums
• Controls ammonia, nitrites, nitrates
• Impact on trace elements is minimal
• Polishes water
• Darkens progressively as it exhausts