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Purigen

4.7 4.7 out of 5 stars 2,821 ratings

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Purchase options and add-ons

Brand Seachem
Liquid Volume 250 Milliliters
Item Weight 0.45 Pounds
Item Form Powder
Target Species Fish

About this item

  • FILTRATION: Purigen ranges in color from almost white (cream) to light yellow. Seachem Purigen is not a mixture of ion exchangers or adsorbents, but a unique macro-porous synthetic polymer that removes soluble and insoluble impurities from water.
  • SELECTIVITY: Seachem Purigen is an organic filtration resin that works hard to remove nitrogenous compounds and waste produced by fish, corals, and even plants, making your water crystal clear.
  • CAPACITY: Being both spherical and macroreticular, Seachem Purigen has microscopic pores that increase its usable surface area to many times that of a purely spherical resin.
  • REGENERATION: Once Seachem’s Purigen is exhausted, it can be regenerated with a solution of bleach and water. The bleach will literally “burn off” the organics that have been removed from the tank.
  • SAFETY: Some slime coat products may permanently foul Purigen and render regeneration difficult. Do not reuse if odor of bleach/chlorine is detectable. In case of doubt, soak beads in small quantity of water and test for residual chlorine with a chlorine test kit.

Customer ratings by feature

Comfort
5.0 5.0
Accuracy
5.0 5.0
Stability
4.7 4.7
Easy to use
4.6 4.6

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Price$14.99$6.99$30.08-63% $6.66
List:$17.96
$20.19-38% $18.49
List:$29.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Easy to use
4.6
4.7
4.9
4.9
4.8
4.8
Value for money
4.2
4.6
4.6
4.4
4.7
4.6
Stability
4.7
4.6
4.6
4.7
4.8
Accuracy
5.0
4.2
5.0
Sheerness
3.7
3.6
5.0
Sold By
Amazon.com
IOAOI
Asavvysavers
Amazon.com
Amazon.com
Asavvysavers
target species
Fish
Fish
Fish
Fish
Fish
Fish
liquid volume
250 milliliters
100 milliliters
500 milliliters
250 milliliters
500 milliliters
500 milliliters
form
Powder
Stick
Liquid
weight
0.45 pounds
2.39 ounces
0.99 pounds
8 ounces
1.15 pounds
0.61 kilograms

From the manufacturer

-

Seachem Purigen

Description:

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 other competing products 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.

  • Highest organic removal capacity
  • Possesses enhanced capacity owing to its vast surface area; both spherical and macroreticular
  • Helps control ammonia/nitrite/nitrate
  • Color changes as it exhausts; easily regenerated

-

Product Description

Seachem Purigen 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 an excelled rate and capacity.

Looking for specific info?

Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 4.9 x 2.4 x 2.3 inches; 7.2 ounces
  • Item model number ‏ : ‎ 166
  • Department ‏ : ‎ Unisex-Adult
  • Date First Available ‏ : ‎ June 20, 2004
  • Manufacturer ‏ : ‎ Seachem Laboratories, Inc.
  • ASIN ‏ : ‎ B000255PJE
  • Country of Origin ‏ : ‎ USA
  • Customer Reviews:
    4.7 4.7 out of 5 stars 2,821 ratings

Important information

Directions

Rinse before use. Use in a fine mesh (180 micron or less) filter bag such as Seachem’s The Bag™. For best results, Purigen® should be placed so as to maximize the flow of water through it. It may be used in a canister filter, media chamber, box filter, or any high flow area of a trickle filter. Each 250 mL treats up to 1,000 L (250 US gallons) for up to six months. Exhaustion is indicated by a pronounced discoloration of the beads to dark brown or black. Regeneration Soak in a 1:1 bleach:water solution for 24 hours in a non-metallic container in a well ventilated area and away from children. Use regular 8.25% hypochlorite household bleach (non-scented, no dyes, do not use a splash-less bleach). Rinse well, then soak for 8 hours with a solution containing 4 tablespoons of Prime®, or equivalent dechlorinator per cup of water. Rinse well. For freshwater use, soak for 4 hours with a solution containing 2 tablespoons of buffer per cup of water (Discus Buffer®, Neutral Regulator®). Original color and full activity should now be restored and Purigen® is ready for reuse. Caution: some slime coat products may permanently foul Purigen® and render regeneration difficult. Do not reuse if odor of bleach/chlorine is detectable. In case of doubt, soak beads in small quantity of water and test for residual chlorine with a chlorine test kit.

Customer reviews

4.7 out of 5 stars
4.7 out of 5
2,821 global ratings

Customers say

Customers say the Purigen is a great product for aquarium and pond water treatment. They say it works well and produces amazing results. They like that it clears tannins and is the best bang for your buck. Customers also appreciate the nitrates, reusability, and filter media. However, some customers have reported that the product looks on the brown side and is clumpy.

AI-generated from the text of customer reviews

177 customers mention159 positive18 negative

Customers like the quality of the aquarium pond water treatment. They mention that it works great as stand-alone chemical media, and produces amazing results. Some say that it's the greatest water polisher ever, and that the plants and animals do fine.

"...It make the water so clear that the difference is stunning. The color of the water seems to change from yellow-ish to blue-ish...." Read more

"...This stuff is amazing. Just make sure you get the right size mesh bag. Needs to be less than 180 microns." Read more

"This stuff seems to do a great job. But I just replace it. I tried to recharge it and I just didn't like it and wasn't comfortable." Read more

"...After reading reviews, I decided to purchase some purigen. This stuff is amazing...crystal clear water within 24 hrs...." Read more

164 customers mention147 positive17 negative

Customers like the water quality of the aquarium pond water treatment. They mention that it makes the water crystal clear, and it keeps it clear for weeks. Some say that the product is amazing and does too much good for water quality.

"...It make the water so clear that the difference is stunning. The color of the water seems to change from yellow-ish to blue-ish...." Read more

"...Absolutely works 💯. Within a couple of days it started to get noticeably clearer and within a week the tannins were gone...." Read more

"...sure whether or not to believe the hype but man my water went from cloudy to crystal clear. This stuff is amazing...." Read more

"...Crystal clear water and easy to regenerate." Read more

28 customers mention23 positive5 negative

Customers like the value of the aquarium pond water treatment. They mention that the regeneration process is not very expensive, and it extends the life of the purgien. Some say that it's easy to use and rechargeable, making it a good purchase.

"Better value for this tub than the individual bags. Especially good for when you need to use a smaller bag to fit in your filter...." Read more

"...Thats less than $5 a month for chemical filtration! A fantastic value! Highly recommend!" Read more

"...Worth every penny." Read more

"...Follow up:Purigen is awesome. "The Bag" is well worth the money as well!..." Read more

27 customers mention27 positive0 negative

Customers are satisfied with the color of the aquarium pond water treatment. They mention that it removes tannins, discoloration, and wood tannins within hours. Some say that it's an absolute must for removing tannins in any tank with driftwood. Overall, most are happy with the product's color-removal capabilities.

"I was skeptical, but within 3 days it had removed all the visible tannins from my planted Walstad tank with leeching driftwood...." Read more

"...It's an absolute must for removing tannin in any tank with driftwood...." Read more

"...I used around just 1 table spoon worth and it was able to clear the brownish color overnight...." Read more

"...clears the water, helps neutralize ammonia and nitrate, helps remove any staining, and helps clear any smell in your water!..." Read more

25 customers mention25 positive0 negative

Customers say the aquarium pond water treatment helps keep nitrates at bay. They say it's a great product to lower nitrites levels and get them under control. Customers also say that it clears the water, helps neutralize ammonia and nifrate, and removes any staining. Overall, customers are happy with the product and recommend it to others.

"...My chemical levels are always just about perfect and my water is crystal clear...." Read more

"...It is a must have for planted tanks to keep water clear, remove nitrates, and keep the tank water healthy...." Read more

"...Aquarium water is CRYSTAL clear and tests perfectly for ammonia and nitrates! No need for filter floss for clear water! Purigen is all you need!..." Read more

"...Also, my tests are perfect. No amonia, no nitrite, no nitrate, no phosphate...." Read more

22 customers mention22 positive0 negative

Customers like the reusability of the aquarium pond water treatment. They say it's easy to regenerate and use again and again. Customers also appreciate that it extends the life of the product.

"...Crystal clear water and easy to regenerate." Read more

"...No effect to pH either (*see edit.) I like too, that it can be regenerated..." Read more

"...It's reusable and you'll go through a lot of hassle by trying to get around this inexpensive purchase but with far less success...." Read more

"...The fact that it's regenerable in our disposable society makes it even more valuable...." Read more

21 customers mention21 positive0 negative

Customers are satisfied with the filter media. They mention that it is the best chemical filtration on the market, fantastic in cannister filters, and does a good job filtering the water. Some say that the resin has helped with filtering fine particulate.

"...I highly recommend Seachem Purigen. It is one of the best chemical filtration products on the market." Read more

"...And Viola! It’s brand new again! On top of that, it doesn’t filter out medications like carbon does...." Read more

"...end to get started I have found that it does in fact add an extra visible filtering boost to my tank...." Read more

"I use it in small mesh bags (180 micron) and it's fantastic in cannister filters...." Read more

34 customers mention10 positive24 negative

Customers are dissatisfied with the appearance of the aquarium pond water treatment. They say it looks on the brown side and clumpy. Some customers also mention that the water turns the color of tea.

"...Ran new canister w/ pads, charcoal, and Matrix for a week. Still colored water...." Read more

"...If your tank is under-filtered, poorly designed, overstocked, over-fed, or contains dumb fish (freshwater parrots, for instance), you don't deserve..." Read more

"...It's lighting up the entire room because the water is so clear! I was wrong to keep things natural for so long...." Read more

"...jar/ broken protective foil seal, and the “beads” are all discolored in a yellowish color...." Read more

Where'd my tannins go!?
5 Stars
Where'd my tannins go!?
My lights were barely penetrating to the surface due to tannins. I love my driftwood, but plants cost $$. All of my tannins are gone after adding a purigen bag to my filter. I kind of miss them but hopefully it will stop being so effective. It's been 4 months and still going strong.
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5.0 out of 5 stars Love Purigen
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Purigen is a must keeps your water crystal clear
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Top reviews from other countries

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5.0 out of 5 stars Water purification
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