Seachem Purigen 250ml - Premium Synthetic Adsorbent

Achieve unparalleled water clarity with Seachem Purigen 250ml, the industry-leading synthetic adsorbent that outperforms traditional carbon-based filtration by over 500%. Unlike standard ion-exchange resins, Purigen is a unique macro-porous synthetic polymer specifically designed to target nitrogenous organic waste. It aggressively removes proteins, soluble and insoluble impurities, and organic precursors that would otherwise break down into ammonia, nitrite, and nitrate.

The result is "floating on air" water clarity and a significant increase in Redox levels. Because Purigen has a minimal impact on essential trace elements, it is the preferred choice for high-end planted aquariums and delicate reef systems. Its most distinctive feature is its ability to be regenerated; as the resin exhausts, it changes from a pale blonde to a dark brown, indicating it is time for a simple bleach-refresh process to restore its full potency.

Specifications

• Brand: Seachem Laboratories
• Volume: 250ml
• Material: Macro-reticular synthetic polymer
• Treatment Capacity: 250ml treats up to 1,000 Litres (250 US Gallons)
• Longevity: Up to 6 months per use (depending on bio-load)
• Pore Structure: Macro-porous (spherical and macroreticular)
• Regenerable: Yes (using household bleach and water)
• Application: Freshwater and Marine Ornamental Aquariums
• Required Accessories: Fine mesh filter bag (180 microns or less, e.g., Seachem "The Bag")

Key Features

• Ultimate Organic Removal: Specifically targets nitrogenous organics, preventing the rise of ammonia and nitrates at the source.
• Extreme Surface Area: The macroreticular structure provides a massive internal surface area for superior adsorption compared to smooth resin beads.
• Visual Exhaustion Indicator: Changes color progressively from light blonde to dark brown/black, removing all guesswork from maintenance.
• Unrivalled Water Polishing: Effectively removes tannins (driftwood staining) and fine particulates that cause haziness and yellowing.
• Cost-Effective & Sustainable: Can be regenerated multiple times (up to 10+ times) with household bleach, making it far more economical than disposable carbon.