Seachem Purigen

Seachem Purigen

  • Makes the water crystal-clear
  • Removes brown discolourations by tannins reliably
  • Can be regenerated uncountable times
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Purigen is a premium synthetic adsorbent that is unlike any other filtration product. It is 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%. Purigen® controls ammonia, nitrites and nitrates by removing nitrogenous organic waste that would otherwise release these harmful compounds. Purigen's impact on trace elements is minimal. It significantly raises redox. It polishes water to unparalleled clarity. Purigen® darkens progressively as it exhausts, and is easily renewed by treating with bleach. Purigen® is designed for both marine and freshwater use.


  • Polishes water to unparalleled clarity
  • reclaimable



Seachem is a renowned manufacturer of aquarium fertilisers and water conditioners. For over 40 years, hobbyists and professionals have benefited from the innovative products. A wide range of aids such as Seachem Purigen or Seachem Matrix ensure crystal-clear water in the aquascape. Biological water conditioners for the aquarium are also offered with products such as Seachem Stabilty are also offered.

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Customer reviews

This item has been rated 4.6 out of 5 stars
53 Reviews
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5 Stars(39)
4 Stars(8)
3 Stars(4)
2 Stars(1)
1 Star(1)
Jerome V.
Pour une eau daquarium cristalline !!
5th December 2022
Seachem - Purigen - 100 ml in a bag
Seachem - Purigen - 100 ml in a bag

Le produit que je noublie jamais de mettre dans ma filtration, la résine permet davoir une eau cristalline mais en plus elle régule phosphate et nitrate. (read more)

Luis F.
A must have
19th January 2021
Seachem - Purigen - 100 ml in a bag
Seachem - Purigen - 100 ml in a bag

Very effective cleaning tannins. Usually use one bag for 60p and 2 for 90p and the water is absolutely crystal clear.

pedro u.
great item
28th February 2020
Seachem - Purigen - 250 ml
Seachem - Purigen - 250 ml

todo perfecto, para tener un agua cristalina, rapido y facil

all perfect!! is perfect to have a cristal water, easy and quick

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