is it meant to have a rotten fish smell?

It does smell a bit when first opened, its fine to use.

Heard so many good reports about this product but can it be used in internal filter, i have Juwel Bioflow 3 in 125L tank.

I was able to fit the sachet into one of the side housings inside a Fluval U2 pump (as supplied with my 90 litre tank). All I had to do was remove the sponge and carbon pad. It’s only been running 5 hours and I can see a difference already. I also dosed with Seachem Pristine.

How many of this for a 510 liter tank grams ???

Its treating up to 1000l so one should be enough you may need to recharged it quicker due your tank size

Purigen Water Filter 250 Ml | Desertcart Denmark

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Description

💎 Elevate your aquarium game with Seachem Purigen—because your fish deserve HD water clarity!

PLUG PLAY SIMPLICITY - Pre-packed beads in a fine mesh pouch—no measuring, no mess, just drop & go.
UNIVERSAL COMPATIBILITY - Works seamlessly in canisters, HOBs, internals, and sumps for versatile aquarium setups.
CRYSTAL CLEAR WATER FAST - Transforms tea-stained tanks to sparkling clarity in 48 hours.
ECO SMART COST EFFECTIVE - Regenerates multiple times with simple bleach soak—sustainability meets savings.
PRECISION FILTRATION UPGRADE - Targets ammonia, nitrites, nitrates & dissolved organics without stripping essential minerals.

Seachem Purigen Freshwater 250 ml is a premium synthetic polymer resin filtration media designed to remove dissolved organics, ammonia, nitrites, nitrates, and tannins from freshwater aquariums. It delivers rapid water clarity improvements within 24-48 hours, is reusable through a simple bleach regeneration process, and maintains stable water chemistry without stripping essential minerals. Compatible with most filter types, it offers a cost-effective, eco-friendly solution for professional-grade aquarium water treatment.

Specifications

ASIN	B000255PJE
Allergen Information	Yam Free
Best Sellers Rank	1,340 in Pet Supplies ( See Top 100 in Pet Supplies ) 13 in Aquarium Water Treatments
Brand Name	Seachem
Country Of Origin	USA
Customer Reviews	4.7 4.7 out of 5 stars (16,825)
Global Trade Identification Number	00000116016605, 00015568976827
Included Components	Filtration
Item Form	Beads
Item Type Name	Seachem Purigen Freshwater, 250 ml
Item Weight	227 g
Liquid Volume	250 Millilitres
Manufacturer	Seachem
Manufacturer Part Number	75185
Model Number	166
Pet Type	Fish
Product Warranty	3 years
Target Species	Fish
UPC	015568976827 000116016605
Unit Count	250.0 millilitre

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358 kr

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In stock

Sold byAmazon DenmarkDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Denmark.

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Purigen Water Filter, 250 ml

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Description

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Common Questions