---
product_id: 50284066
title: "Purigen Freshwater, 250 ml"
brand: "seachem"
price: "C$3900"
currency: NIO
in_stock: true
reviews_count: 7
category: "Seachem"
url: https://www.desertcart.ni/products/50284066-purigen-freshwater-250-ml
store_origin: NI
region: Nicaragua
---

# Highest organic removal capacity Color-change indicator for exhaustion Reusable & regenerable with bleach Purigen Freshwater, 250 ml

**Brand:** seachem
**Price:** C$3900
**Availability:** ✅ In Stock

## Summary

> 💎 Elevate your aquarium game with HD clarity that everyone will envy!

## Quick Answers

- **What is this?** Purigen Freshwater, 250 ml by seachem
- **How much does it cost?** C$3900 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/50284066-purigen-freshwater-250-ml)

## Best For

- seachem enthusiasts

## Why This Product

- Trusted seachem brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Balanced water chemistry.:** Removes organics without stripping essential minerals or altering pH.
- • **Smart color-change alert.:** Know exactly when to regenerate with visible bead color shift.
- • **Crystal-clear water, fast.:** Transforms tea-stained tanks to sparkling clarity in 48 hours.
- • **Eco-friendly & cost-effective.:** Reusable media saves money and reduces waste over multiple cycles.
- • **Universal filter compatibility.:** Fits canisters, HOBs, internals, and sumps with no flow restriction.

## Overview

Seachem Purigen Freshwater 250 ml is a high-capacity synthetic polymer resin media designed to remove dissolved organics, ammonia, nitrites, nitrates, and tannins from freshwater aquariums. It delivers rapid water clarity improvements within 24-48 hours, features a unique color-change indicator to signal exhaustion, and can be regenerated multiple times using a bleach soak, making it a cost-effective and eco-friendly filtration upgrade compatible with most filter types.

## Description

Product Description Seachem Purigen 250Ml Directions 1. Rinse the Purigen media beads in water before use. 2. Place your filter. 3. For best results, place a filter bag to prevent it from clogging 4. Regenerate when turns dark brown or black using bleach solution. 5. Do not use with products containing slime coat as may become toxic. P.when('A').execute(function(A) { A.on('a:expander:toggle_description:toggle:collapse', function(data) { window.scroll(0, data.expander.$expander[0].offsetTop-100); }); }); Box Contains water treatment See more

Review: HD quality water! - Seachem Purigen – my “HD water” upgrade for crystal‑clear tanks Purigen is the product I reach for when I want that next level of polish. It consistently strips out the dissolved organics that make water look tired—tannins, slight yellowing, and odours—without flattening the life out of a planted or community tank. The end result is that crisp, glassy clarity that makes colours pop and hardscape look like it’s floating. What I notice in real use Immediate visual lift: Within days the water shifts from “clean” to sparkling, with noticeably better light penetration and contrast. Less film and odour: Surface sheen and any faint musty smell are dialled right down. Stable chemistry: It targets dissolved organics rather than stripping essential minerals; I’ve not seen it upset parameters when used as directed. Where it fits in the filter Pop Purigen in a fine media bag and place it towards the end of the flow path, after mechanical (sponges/floss) and bio (e.g., ceramic/Matrix) stages. Clean water hitting Purigen = better contact time and longer life. Don’t pack it too tightly—let water flow through rather than around it. Maintenance & regeneration (simple and cost‑effective) It changes colour from off‑white to dark brown/black as it’s exhausted. That’s your cue to recharge. Follow the label: bleach‑soak to regenerate, then thoroughly neutralise with a dechlorinator and rinse before returning it to the tank. (Pause UV/ozone during this step and never mix bleach with any other chemicals.) Because it’s reusable for multiple cycles, it’s great value, especially if you run several aquariums. Tips from day‑to‑day use Pair it with solid mechanical pre‑filtration; the less gunk hitting Purigen, the longer it lasts. If you want a mild tannin tint (e.g., for a blackwater look), use a smaller pouch or remove Purigen after the water looks how you like it. It works across canisters, HOBs, internals, and sumps—just keep it in a tight, fine bag so granules don’t escape. Verdict If biological media is the engine of your filtration, Purigen is the finishing filter that gives you that “show tank” shine. It’s my go‑to for high‑definition water, fast cosmetic improvements, and long‑term polish without constant replacements. For me, it’s a simple, reliable upgrade that makes every aquarium look its best.
Review: Crystal-clear results—removes tannins, organics, and cloudiness with zero faff or chemical drama. - Dropped this into a 120L planted tank running a canister filter—water went from tea-stained to glass-clear in under 48 hours. It targets dissolved organics, not just visible muck, so it’s ideal for setups with driftwood, heavy feeding, or cloudy water issues. Comes pre-packed in a mesh pouch—no measuring, no mess. Just rinse, drop into your filter tray or media basket, and let it work. I’ve used it in both RTA-style filters and hang-ons—no flow restriction, no breakdown. 🔍 Specs & Features Size: 100ml pouch (treats up to ~400L depending on bioload) Type: Synthetic polymer resin Use: Freshwater only (this version) Function: Removes tannins, ammonia, nitrites, nitrates, and dissolved organics Regeneration: Can be cleaned and reused with bleach (instructions provided) 🧪 Performance Clarity: Noticeable improvement in 24–48 hours Smell: Reduces tank odour Colour: Clears brown tint from driftwood setups Longevity: Lasts 4–6 weeks depending on load Reusability: Can be regenerated multiple times—saves cost long-term 👍 Pros ✅ Clears water fast—removes organics and tannins ✅ Pre-packed—no mess, no measuring ✅ Reusable—regenerates with bleach ✅ No impact on pH or hardness ✅ Works in most filter types 👎 Cons ❌ Needs bleach for regeneration—follow safety steps ❌ Doesn’t remove heavy metals or meds ❌ Can clog if used in very dirty tanks—pre-filter recommended ❌ Not a substitute for water changes 🧭 Personal Verdict If you want crystal-clear water without chemical dosing or constant maintenance, Purigen earns its spot. I’ve used it in planted tanks, fry setups, and even shrimp tanks—no drama, just clean results. It’s proper gear for anyone who wants clarity without compromise.

## Features

- Highest organic removal capacity
- Helps control ammonia/nitrite/nitrate
- Colour changes as it exhausts; easily regenerated

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000255PJE |
| Allergen Information | Yam Free |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 1,067 in Pet Supplies ( See Top 100 in Pet Supplies ) 6 in Aquarium Water Treatments |
| Colour | Mehrfarbig |
| Customer Reviews | 4.7 4.7 out of 5 stars (16,410) |
| Date First Available | 19 Oct. 2009 |
| External Testing Certification | Não aplicável |
| Item Form | Beads |
| Item Weight | 227 g |
| Item model number | 166 |
| Number of Items | 1 |
| Pet Type | Fish |
| Product Dimensions | 12.45 x 6.1 x 5.84 cm; 226.8 g |
| Quantity | 1 |
| Size | 250 ml (Pack of 1) |
| Specific Uses | Filtration in Aquariums |
| Volume | 250 Millilitres |

## Product Details

- **Brand:** Seachem
- **Item form:** Beads
- **Item weight:** 227 g
- **Liquid volume:** 250 Millilitres
- **Manufacturer:** Seachem

## Images

![Purigen Freshwater, 250 ml - Image 1](https://m.media-amazon.com/images/I/61aCA7Ktx+L.jpg)

## Questions & Answers

**Q: is it meant to have a rotten fish smell?**
A: It does smell a bit when first opened, its fine to use.

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

**Q: any one know if this is ok for use with with a biorb .**
A: Yes

**Q: How many of this for a 510 liter tank grams ???**
A: Its treating up to 1000l so one should be enough you may need to recharged it quicker due your tank size

## Customer Reviews

### ⭐⭐⭐⭐⭐ HD quality water!
*by P***O on 15 January 2026*

Seachem Purigen – my “HD water” upgrade for crystal‑clear tanks Purigen is the product I reach for when I want that next level of polish. It consistently strips out the dissolved organics that make water look tired—tannins, slight yellowing, and odours—without flattening the life out of a planted or community tank. The end result is that crisp, glassy clarity that makes colours pop and hardscape look like it’s floating. What I notice in real use Immediate visual lift: Within days the water shifts from “clean” to sparkling, with noticeably better light penetration and contrast. Less film and odour: Surface sheen and any faint musty smell are dialled right down. Stable chemistry: It targets dissolved organics rather than stripping essential minerals; I’ve not seen it upset parameters when used as directed. Where it fits in the filter Pop Purigen in a fine media bag and place it towards the end of the flow path, after mechanical (sponges/floss) and bio (e.g., ceramic/Matrix) stages. Clean water hitting Purigen = better contact time and longer life. Don’t pack it too tightly—let water flow through rather than around it. Maintenance & regeneration (simple and cost‑effective) It changes colour from off‑white to dark brown/black as it’s exhausted. That’s your cue to recharge. Follow the label: bleach‑soak to regenerate, then thoroughly neutralise with a dechlorinator and rinse before returning it to the tank. (Pause UV/ozone during this step and never mix bleach with any other chemicals.) Because it’s reusable for multiple cycles, it’s great value, especially if you run several aquariums. Tips from day‑to‑day use Pair it with solid mechanical pre‑filtration; the less gunk hitting Purigen, the longer it lasts. If you want a mild tannin tint (e.g., for a blackwater look), use a smaller pouch or remove Purigen after the water looks how you like it. It works across canisters, HOBs, internals, and sumps—just keep it in a tight, fine bag so granules don’t escape. Verdict If biological media is the engine of your filtration, Purigen is the finishing filter that gives you that “show tank” shine. It’s my go‑to for high‑definition water, fast cosmetic improvements, and long‑term polish without constant replacements. For me, it’s a simple, reliable upgrade that makes every aquarium look its best.

### ⭐⭐⭐⭐⭐ Crystal-clear results—removes tannins, organics, and cloudiness with zero faff or chemical drama.
*by G***E on 21 September 2025*

Dropped this into a 120L planted tank running a canister filter—water went from tea-stained to glass-clear in under 48 hours. It targets dissolved organics, not just visible muck, so it’s ideal for setups with driftwood, heavy feeding, or cloudy water issues. Comes pre-packed in a mesh pouch—no measuring, no mess. Just rinse, drop into your filter tray or media basket, and let it work. I’ve used it in both RTA-style filters and hang-ons—no flow restriction, no breakdown. 🔍 Specs & Features Size: 100ml pouch (treats up to ~400L depending on bioload) Type: Synthetic polymer resin Use: Freshwater only (this version) Function: Removes tannins, ammonia, nitrites, nitrates, and dissolved organics Regeneration: Can be cleaned and reused with bleach (instructions provided) 🧪 Performance Clarity: Noticeable improvement in 24–48 hours Smell: Reduces tank odour Colour: Clears brown tint from driftwood setups Longevity: Lasts 4–6 weeks depending on load Reusability: Can be regenerated multiple times—saves cost long-term 👍 Pros ✅ Clears water fast—removes organics and tannins ✅ Pre-packed—no mess, no measuring ✅ Reusable—regenerates with bleach ✅ No impact on pH or hardness ✅ Works in most filter types 👎 Cons ❌ Needs bleach for regeneration—follow safety steps ❌ Doesn’t remove heavy metals or meds ❌ Can clog if used in very dirty tanks—pre-filter recommended ❌ Not a substitute for water changes 🧭 Personal Verdict If you want crystal-clear water without chemical dosing or constant maintenance, Purigen earns its spot. I’ve used it in planted tanks, fry setups, and even shrimp tanks—no drama, just clean results. It’s proper gear for anyone who wants clarity without compromise.

### ⭐⭐⭐⭐⭐ Review
*by O***. on 24 November 2025*

Excellent...thank you...

## Frequently Bought Together

- Purigen & Matrix Bio Media 250ml
- ALEGI Media Filter Bag Aquarium Extra Fine,Reusable 180 Micron Drawstring Mesh Filter Bags for Very Fine Resins Filter (7.5"*3.6" (3 Pack))
- Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 500 ml

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-02-03*