Purigen Filter Media 4L - Seachem


Purigen is a uniquely engineered synthetic adsorbent media that can dramatically improve water quality, reducing organic wastes, colors, and odors in a very short time. This premium media works similarly to high-end activated carbons, utilizing extremely tiny pores throughout the polymer structure to rapidly attract and remove soluble and insoluble impurities from your aquarium water. Based on Seachem’s testing, Purigen can outperform other traditional competing medias by over 500%. Purigen will quickly remove organic wastes from the water before they have a chance to break down and impact water quality. This can short circuit the production of nitrates by removing their precursor products. At the same time, because Purigen targets organic molecules, it will not significantly affect trace elements. Purigen also darkens as it exhausts, providing a visual indicator for maintenance.



  • Highest organic removal capacity
  • Possesses enhanced capacity owing to its vast surface area; both spherical and macroreticular
  • Helps control ammonia/nitrite/nitrate
  • Color changes as it exhausts; easily regenerated


Purigen extremely effective and can provide visible reduction in haziness and water coloration from organics more quickly than almost any other product on the market. Purigen is specifically designed to be an organic scavenger. Purigen generally ignores simple elemental compounds, having an extreme affinity for nitrogenous organics. As a result, Purigen will not target metals and other contaminants, which allows it to work for extended periods of time targeting organic waste products that can lead to yellowing and odors in your tank. Purigen removes that waste faster and more completely than anything else on the market.