Seachem Purigen effectively removes ammonia, nitrites, nitrates & more.

Removes ammonia, nitrites, nitrates in water

nitrogenous organic waste

soluble & insoluble wastes

Benefits of Purigen

Up to 5 times faster than competing filter media

Minimal impact on trace elements

Significantly increases redox

Great water clarity

Suitable for marine and freshwater

Easily regenerated and re-use many times, long-term cost saving

How to prepare Purigen

Rinse before use.

Place Purigen in fine mesh (180 micron or less) filter bag.

250 mL treats up to 1,000 L (250 US gallons) for up to six months.

How to Regenerate Purigen

As it adsorbs waste products, Purigen will darken to dark brown, almost black. Once it is exhausted, it can be regenerated with a solution of bleach and water. The bleach will literally “burn off” the organics stuff on the surface of Purigen.

Difference - bleach vs brine regeneration

Some filter media products can be regenerable with a brine solution. However, brine regeneration only restores ion-exchange. A brine solution will not remove organics, and over time such filter media will be less effective at organic waste absorption. Whereas the bleach burns off even the hardened organic stuffs that remain on the surface of the Purigen filter media, totally restore Purigen to its effective state.