Seachem Purigen

46 reviews

Never again will your fish's organic waste present a danger, with SeaChem Purigen. These spherical beads adsorb the dangerous levels of ammonia, nitrates and nitrites created by fish waste for up to six months at a time. A great addition to your water filtration system, you can get them at the best price here at Swell UK.


  • Purigen (Bagged) 100ml
    code: 165 In stock Less than 10 in stock
  • Purigen 250ml
    code: 166 Out of stock (Notify me)
  • Purigen 500ml
    code: 163 In stock Only 2 left in stock
  • Purigen 1000ml
    code: 167 In stock Only 3 left in stock

Product Information

Seachem Purigen is a premium synthetic adsorbent that is unlike any other filtration product. It is a unique macro-porous synthetic polymer that removes soluble and insoluble impurities from both marine and fresh water and controls ammonia, nitrites and nitrates by removing nitrogenous organic waste that would otherwise release these harmful compounds.

The unique bead design of these resins is rounder than similar products, which gives it a larger surface area and more microscopic pores that increase its usable surface area to many times that of a purely spherical resin.

Purigen can also be regenerated as it absorbs waste products it will steadily darken and once it is exhausted, it can be regenerated with a solution of bleach and water.


When using a filter bag, one litre of Seachem Purigen will treat up to 4,000 litres (1,000 gallons) for up to six months.


  • Rinse before use
  • Use in a fine mesh filter bag
  • Larger surface area of spherical beads increases efficiency of beads
  • Beads can be regenerated using bleach
  • Available in a variety of sizes-please note that the larger sizes are ordered direct and can take approx. 6 days for delivery.

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