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Seachem Purigen

Seachem Purigen

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Size: 250 mL

Sub total:

$18.00
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Description
Aquatic Dry Goods

Seachem Purigen

Regenerable filtration resin for removing organic waste and polishing water.

Organic Waste RemovalFreshwater & Marine250 mL

Seachem Purigen is a synthetic adsorbent that captures organic impurities in aquarium water. Removing nitrogen-containing organic waste helps limit the waste available to become ammonia, nitrite, and nitrate. It supplements your existing filter rather than replacing biological filtration or routine water changes.

Where Purigen Fits in Your Filter

Purigen is a chemical filtration medium for aquarists who want an additional way to remove organic impurities and polish the water. It belongs in a suitable media bag within your filtration setup, where water can pass through it. It is not a replacement sponge, a bacterial starter, or a loose substrate additive.

Choose it when you want a removable, inspectable medium that can be maintained separately from the rest of the filter. Make room for both the bag and the water path around it; a tightly packed chamber is not automatically a more effective one.

Understand What It Removes

Purigen targets organic material before that waste breaks down further. It does not directly remove existing ammonia, nitrite, or nitrate. If your tests show a problem, address the aquarium conditions and maintenance needs rather than expecting this resin to solve an emergency by itself.

The Right Bag Matters

This listing is the 250 mL loose-media container, not a prefilled pouch. Select a bag with openings rated at 180 microns or finer. Our standard Seachem Zip Bags are different products and are not suitable for retaining this fine resin. Check compatibility before ordering the bag and media together.

Maintenance & Reuse

The color change makes the resin easy to inspect during routine filter maintenance. Service life depends on the waste load and conditions in your aquarium, so the stated maximum is not a replacement schedule for every tank.

Regeneration involves bleach and a specific dechlorination process. Use Seachem's full current instructions linked below rather than an abbreviated recipe. Never return incompletely treated media to an aquarium. If you are not comfortable completing the entire procedure, replace the exhausted resin.

Features & Options

250 mL treats up to 250 US gallons, with service life up to six months depending on aquarium conditions.
Beads darken toward brown or black as the media becomes exhausted.
Can be regenerated following Seachem’s complete instructions.

How to Use

1Rinse before use and place the resin in a filter bag rated 180 microns or finer, such as Seachem The Bag.
2Position it where water flows through the media.
3Monitor its color and replace or regenerate when exhausted. Follow the manufacturer’s full regeneration and dechlorination procedure before reuse.
Good to Know

This is loose media. Standard Zip Bags are not the recommended bag for Purigen; a suitable superfine bag is required and sold separately.

What You Receive

One 250 mL container of Purigen. Filter bag not included.

Seachem product information and directions

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Policies & Disclaimers

Check fit, included parts and intended use, with practical guidance for aquarium accessories and shipping supplies.

Size, fit & what is included

Check the selected option, dimensions and quantity in the listing before ordering. A net’s shape, a dish’s footprint, a filter’s height and a holder’s opening can matter as much as the aquarium’s stated volume. Measure the space where the item will be used, including access around lids, equipment and hardscape.

Photographs show the product and examples of its use. Plants, moss, food, livestock, airline, pumps and other display items are included only when the listing explicitly says they are. A stand or holder is not automatically supplied with the item it holds.

Compare the actual selection with your intended setup. Do not assume a similar-looking accessory fits another brand, tubing size or attachment. If a needed measurement or included component is not stated, ask before purchasing rather than estimating from a photograph.

Before installation

Inspect the item and its packaging on arrival. Check visible surfaces, seams, mesh, connectors and any supplied parts before putting it into the aquarium. If you find a crack, damaged edge, missing part or suspected mismatch, photograph it and contact us before use.

Follow the product’s instructions for assembly, rinsing and installation. Avoid household soap, scented cleaners and unverified chemical treatments on aquarium-contact surfaces. Do not assume every material tolerates boiling, a dishwasher or an abrasive cleaning tool.

Use equipment only for its stated purpose and within any stated limits. Where electrical equipment is part of your setup, follow its manufacturer’s electrical and water-safety instructions. Do not treat an accessory’s aquarium use as a statement that every connected component is submersible.

Sponge filters: airflow & establishing filtration

An air-driven sponge filter needs an appropriate air supply and connections to operate. Check the listing for exactly which parts are included rather than assuming an air pump, airline or valve comes with the filter. Assemble the system according to its instructions and confirm that air and water are moving as intended.

Choose placement and airflow that suit the animals while keeping the filter accessible for maintenance. A new sponge provides a surface for beneficial bacteria, but it is not automatically a mature biological filter. Continue monitoring water quality while filtration becomes established.

Filter performance depends on the complete setup, stocking and maintenance. A size recommendation is not a guarantee that every aquarium of that volume can support the same number of animals. Keep established biological filtration functioning when making changes and follow the filter’s cleaning guidance.

Nets & temporary holding accessories

Choose mesh, opening and depth appropriate to the animals you intend to handle. Check for damaged mesh or exposed edges before use. Move animals calmly and avoid trapping delicate legs, antennae or fins against the rim or surrounding equipment.

A net or holding accessory is a handling tool, not a complete aquarium or long-term housing system. Consider water movement, temperature, escape routes and the time an animal remains confined. Do not assume a floating or attached accessory is secure without checking it in your setup.

Keep handling tools clean and consider separate tools for quarantine and established aquariums. Follow material-specific cleaning guidance and prevent unwanted transfer of water or debris between tanks.

Feeding dishes, stands & holders

Place feeding dishes on a stable surface where the animals can reach them and where uneaten food can be removed. A dish helps keep food in a visible area; it does not remove the need to check feeding amounts or clean up excess food.

Inspect glass or ceramic items for cracks and chipped edges before installation and during maintenance. Avoid forceful contact with rocks, aquarium glass or other hard objects. A holder should fit the intended item without forcing or stressing either part.

For lollie stands and similar feeding holders, confirm the opening and positioning suit the food being used. Support the item securely and check that the arrangement does not block access or create an unsuitable trap for small animals.

Plant weights, rings, moss supports & hides

Plant weights and rings are accessories, not live plants. They do not qualify for the Buy 2 Get 1 Free plant offer. Check what the listing includes before assuming moss or another plant is supplied with a tower or support.

Secure plants without crushing stems or covering growing points that need to remain exposed. Position floating rings so they do not obstruct equipment or concentrate plants where water movement is unsuitable. Recheck attachments as plants grow.

Choose hide openings and internal spaces for the animals’ size and behavior. Position hides and towers securely, with access for inspection and cleaning. An accessory can provide shelter, but it does not guarantee that territorial animals will coexist or that predators cannot reach smaller tankmates.

Heat & ice packs: shipping support

Shipping packs help moderate conditions inside a properly packed shipment. They are not aquarium heaters or chillers, and they do not guarantee a fixed box temperature, a particular carrier delivery time or livestock survival. Use them only as intended and follow the specific pack’s handling instructions.

Our ice pack typically provides cooling for about 24–48 hours, depending on conditions. That is an approximate cooling period, not a promise that it will arrive frozen or remain cold throughout every journey. Ambient heat, transit duration, insulation and package contents affect how quickly it warms.

A thawed ice pack on arrival does not by itself show that it provided no cooling during transit. Heat-pack duration likewise describes the particular product’s intended performance under suitable conditions, not guaranteed protection from every temperature extreme. Keep pack contents separate from aquarium water and livestock.

Review our Shipping Information for packing and weather guidance. Adding a pack does not replace the shipping requirements that apply to live animals or plants, or change the existing Live Arrival Guarantee.

Cleaning, maintenance & wear

Inspect accessories periodically for buildup, weakened attachments, damaged mesh, cracks or loose parts. Clean according to the product’s materials and instructions, and check that the item is still positioned safely afterward.

Suction, airflow and other functions can change with placement, buildup and wear. Investigate an unexpected change rather than compensating by forcing a connection or modifying the item. If you suspect a fault, stop using it where continued operation could damage the setup and contact us with the details.

No universal service life, replacement schedule or new warranty is stated here. Any product-specific instructions or documented warranty should be checked for that exact item. These maintenance notes do not create additional return exclusions.

Package problems, incorrect items & questions

Inspect your equipment or supplies and their packaging on arrival. If the package is torn, wet, leaking, incorrectly labeled or appears to contain the wrong item or quantity, contact support@superiorshrimpaquatics.com promptly with your order number and clear photos. Include the label, the affected product and packaging so we can understand the concern.

Keep the original packaging and avoid using a product that appears contaminated or compromised while you ask for advice. This is practical documentation guidance, not a new claim deadline or a promise of a particular resolution. A routine unopened return and a report that an item arrived damaged or incorrect are different concerns; tell us which applies.

Existing return terms & exchanges

Equipment and supplies are dry goods under our Return Policy. Ordinary returns require prior written authorization and unused, unopened items in their original sealed packaging. Contact us from the email address on your order before sending anything back, and consult the linked policy for its request window and complete eligibility requirements.

The buyer pays return shipping and safe packaging costs. Original shipping charges are non-refundable, and there is no restocking fee. Returned items must arrive in their original condition for inspection.

Approved refunds are processed within 3 business days after receipt and inspection, to the original payment method for the eligible item value. In-store exchanges are available for eligible items with prior written authorization. Promotional, free and final-sale items are subject to the exclusions in the full policy.

Shipping & mixed orders

These products ship as dry goods under our existing shipping practices. Review the delivery address, selected quantity and variant before checkout. Dispatch and delivery timing depend on fulfillment, stock and the selected service; a carrier transit estimate is not a guaranteed ship date.

If your order also includes live animals or plants, review their shipping requirements separately. Adding equipment or supplies does not remove the requirements that apply to the live items in that order.

Live Arrival Guarantee scope

The existing Live Arrival Guarantee covers live animals and aquatic plants. It excludes food, botanicals and other dry goods. The livestock reporting window and bonus-animal rules are not equipment warranties or supply guarantees. For an issue with this item, contact us and refer to the Return Policy above.

Product-use guidance is separate from store policy. These explanations do not add return exclusions, claim deadlines or guaranteed outcomes. Read the linked policies for complete terms.

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