Aquariums For Beginners

Seachem Purigen Removes Organic Waste from Marine and Freshwater Aquariums

$10.99 USD
Shipping calculated at checkout.
  • 100 mL
  • 250 mL
  • 500 mL
  • 1 liter
  • 40 mL (4 x 100 mL)
  • 750 mL (3 x 250 mL)
  • 1500 mL (3 x 500 mL)
  • 2 liter (2 x 1 L)

In stock


✍️ Description

🚚 Fast & Free Shipping
😊 Easy Returns

Seachem Purigen Ultimate Filtration is a premium synthetic adsorbent that, unlike any other filtration product, 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%.

  • Removes soluble and insoluble impurities from water
  • Controls ammonia, nitrites, nitrates
  • Polishes water to unparalleled clarity

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 levels in the water, ensuring a healthier aquatic environment. Not only does Purigen remove impurities, but it also enhances the visual appeal of the water, ensuring unparalleled clarity and pristine conditions for your aquatic life.

Why Choose Seachem Purigen Ultimate Filtration:

  • Selectivity: Purigen is the highest capacity organic filtration resin on the market. It has a unique ability to clear haziness and polish water to unparalleled clarity. Unlike other products on the market that are simple ion-exchange resins, Purigen is specifically designed to be an organic scavenging resin. While other resins reach capacity with metals and contaminants, Purigen continues to remove waste efficiently. Purigen is highly selective, targeting nitrogenous organics, the primary source of compounds that pollute aquariums. Fish, corals, and plants all produce nitrogenous waste, and Purigen is the ultimate solution for removing this waste effectively and rapidly.
  • Enhanced Capacity: Purigen outperforms other resins due to its unique spherical and macroreticular structure. Unlike smooth spherical beads, Purigen has microscopic pores that increase its usable surface area significantly. This enhanced capacity allows Purigen to adsorb waste products more efficiently and maintain its pristine condition for a longer duration.
  • Regeneration: Purigen can be regenerated, ensuring cost-effectiveness and long-term use. As Purigen adsorbs waste, it changes color from a pale blonde to a dark brown or black. Once it reaches exhaustion, Purigen can be regenerated using a solution of bleach and water. The bleach effectively removes the organics that have been eliminated from the tank, allowing Purigen to be reused multiple times. Unlike other products that claim to be regenerable with a brine solution, which only replaces ionic compounds, Purigen's regeneration process removes large organic molecules that were filtered out during its adsorption process, thereby prolonging its lifespan and efficiency.

Directions for Use:

  • Rinse before use to remove any residual debris or dust.
  • Place Purigen in a fine mesh filter bag for easy handling and to prevent the beads from escaping.
  • Each 1 L of Purigen treats up to 4,000 L (1,000 gallons) of water, providing long-lasting filtration for up to six months.
  • Exhaustion of Purigen is indicated by a pronounced discoloration of the beads to dark brown or black, signaling the need for regeneration or replacement.

Regeneration Instructions:

1. Soak Purigen in a 1:1 solution of bleach and water for 24 hours in a non-metallic container, ensuring ample ventilation and keeping it out of reach of children.

2. Rinse the beads thoroughly to remove any residual bleach.

3. Submerge Purigen in a solution containing 2 tablespoons of a dechlorinator such as ChlorGuard or Prime per cup of water, and let it soak for 8 hours.

4. Rinse the beads well to eliminate any traces of the dechlorinator solution.

5. After regeneration, Purigen will regain its original color and full activity, ready to be reused for exceptional filtration performance.


Choose the appropriate size of Purigen based on your tank's capacity:

  • 100 ml (Media Bag): Treats 106 Gallons
  • 250 ml: Treats 265 Gallons
  • 500 ml: Treats 530 Gallons
  • 1 Liter: Treats 1,060 Gallons
  • 2 Liters: Treats 2,120 Gallons
We ship 100% of our pet supplies to ensure orders ship fast and are delivered on-time. Orders placed after 6 AM PST ship within 1 business day Monday-Friday, excluding all major holidays. Flat-rate shipping rates based on your sub-total are displayed at checkout for your convenience.

Free Shipping - on orders over $150
Fast Handling - orders after 6AM PST Monday-Friday process in 1 business day 
Fast Shipping - packages are delivered in 1-5 business days with FedEx and USPS 

We ship within the 48 contiguous United States, excluding Hawaii and Alaska. A FedEx or USPS tracking number will be emailed upon shipment and will provide an accurate estimated delivery date on each carrier's website. FedEx tracking numbers are 12 digits long and USPS tracking numbers are 22 digits long.
Customer satisfaction is extremely important to us. Products may be returned within 30 days of receipt. If you are not 100% satisfied with your purchase, you may return your items for a refund. Returns must be unused, unworn, and in the original condition with manufacturer packaging to warrant a refund. 

30 Day Returns - any unused item in the original condition can be returned 
Fast Refunds - our returns department will process your refund within 1 week of reciept after inspection 

All refunds are processed back to the original payment method at the time of purchase. After a refund has been processed your bank may take 24-72 hours to post the refund back to your account. You can view your order history and refunds online for your convenience.
Receive the newest updates, special deals, and aquarium care tips straight to your inbox.
Explore Our Aquarium Blog