We offer a 30-day free return policy, with refund or replacement available on eligible items in
their original condition. Used, damaged, or significantly different items may not qualify for a full
refund. For more information, please refer to our
return policy.
Frequently Bought Together
Frequently Bought Together
Description
Keep your aquarium water crystal clear and your aquatic life thriving with advanced filtration technology. Enjoy a cleaner, healthier, and more balanced environment for your fish and plants. Seachem Laboratories Purigen Organic Resin Filter 500 ml is a premium synthetic adsorbent designed to provide superior removal of soluble and insoluble impurities. Seachem Resin Filters for Aquariums outperform competing products, effectively reducing ammonia, nitrite, and nitrate levels. As one of the best fish tank filters, it helps polish water to unmatched clarity while preserving essential trace elements. This unique resin regenerates easily, offering long-term value and consistent performance for both freshwater and marine aquariums.
KEY BENEFITS
Provides the highest capacity for organic waste removal compared to other filtration resins.
Seachem Resin Filters for Aquariums feature macroreticular and spherical structure for enhanced adsorption surface area.
Helps control ammonia, nitrite, and nitrate by eliminating nitrogenous waste.
Changes color as it becomes exhausted, making it easy to monitor effectiveness.
It can be regenerated with bleach, restoring efficiency for repeated use.
Show More +
INGREDIENTS ANALYSIS
Purigen is a macro-porous synthetic polymer with both spherical and macroreticular structure, providing an exceptionally high surface area for absorption of nitrogenous organic waste. It is chemically inert, safe for freshwater and marine aquariums, and retains essential trace elements while removing impurities.
Attributes & Specifications
Item Type
Organic filtration resin
Form
Spherical & macroreticular beads
Compatibility
Freshwater & marine aquariums
Regeneration
Bleach treatment (multiple cycles)
Free From
Ion-exchange fillers & harmful additives
safety & precautions
Handle bleach regeneration carefully; never return untreated Purigen to the aquarium.
Do not use with chloramine-removing products during regeneration, as this may leave toxic residues.
Keep out of reach of children and pets.
For aquarium use only; not for human or animal consumption.
DIRECTIONS FOR USE
Use 250 mL Purigen per 1,000 L (250 US gallons) of water.
Place in a filter bag inside a canister, box, or other aquarium filter.
Purigen darkens as it exhausts; regenerate when it turns dark brown/black.
Regenerate by soaking in a 1:1 bleach: water solution for 24 hours, rinse thoroughly, then soak in a dechlorinator solution before reuse.
Avoid using brine solution for regeneration, as it does not remove organic waste.
Recently Viewed
Frequently Asked Questions
How do I know when Purigen is exhausted?+
Purigen gradually darkens from pale blonde to dark brown/black. This indicates it is time to regenerate. Its color shift makes it easy to monitor visually.
Can Seachem Laboratories Purigen Organic Resin Filter 500 ml be used in both freshwater and marine tanks?+
Yes. Purigen is safe and highly effective in both freshwater and saltwater aquariums. It preserves trace elements while removing harmful nitrogenous waste.
How many times can Purigen be regenerated?+
Purigen can be regenerated multiple times using bleach treatment. With proper care, a single batch can last for years of repeated use.
Does Purigen affect pH or trace element balance?+
No. Purigen selectively targets nitrogenous waste and organic compounds without significantly affecting pH or vital trace elements in the aquarium.
Why is Seachem Resin Filters for Aquarium better than ion-exchange resins?+
Unlike ion-exchange products that remove simple compounds, Purigen specializes in removing nitrogenous organics. Its unique macroreticular structure provides much higher adsorption capacity.
Purigen has wholly transformed my aquarium water! Crystal clear and free of impurities. It literally works like magic. I highly recommend it to any fishkeeper.
M
Max
Best chemical filtration
The combination of Seachem Matrix and PhosGuard is a good quality filter floss and works great for a mah marine tank. From my experience, it's the Best chemical filtration for any aquarium!
O
O'Brien
Seachem Purigen: Crystal-Clear Aquarium Water
For crystal-clear aquarium water, Seachem Purigen is my go-to filtration solution. It effectively removes impurities, keeping my tank clean and healthy.
B
Barbie
Incredibly Helpful and Friendly Customer Support
I had a question about one of the products, and their customer support team was incredibly helpful and friendly.