---
product_id: 48273406
title: "Seachem Prime Water Conditioner, 250 ml"
brand: "seachem"
price: "1117443₫"
currency: VND
in_stock: true
reviews_count: 13
category: "Seachem"
url: https://www.desertcart.vn/products/48273406-seachem-prime-water-conditioner-250-ml
store_origin: VN
region: Vietnam
---

# Effective for fresh & saltwater tanks Concentrated formula treats 4000L water Detoxifies ammonia, nitrite & nitrate Seachem Prime Water Conditioner, 250 ml

**Brand:** seachem
**Price:** 1117443₫
**Availability:** ✅ In Stock

## Summary

> 💧 Transform your tank water into a crystal-clear oasis with Seachem Prime!

## Quick Answers

- **What is this?** Seachem Prime Water Conditioner, 250 ml by seachem
- **How much does it cost?** 1117443₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/48273406-seachem-prime-water-conditioner-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

- • **Trusted by Pros:** Ideal for new setups, emergency spikes, and routine maintenance—keeps your tank thriving.
- • **Comprehensive Detox:** Neutralizes chlorine, chloramine, ammonia, nitrite, and nitrate for pristine water quality.
- • **Clean & Clear Dosing:** No smell, no residue—ensures a spotless aquatic habitat without clouding.
- • **Ultra-Concentrated Power:** One 250ml bottle treats up to 4000L—max efficiency, minimal effort.
- • **Universal Aquarium Compatibility:** Safe for all fish, invertebrates, and plants in both freshwater and marine environments.

## Overview

Seachem Prime Water Conditioner is a highly concentrated, multi-use formula designed to detoxify harmful chemicals like chlorine, chloramine, ammonia, nitrite, and nitrate in both fresh and saltwater aquariums. With one bottle treating up to 4000 liters, it ensures safe, clean water for all aquatic life stages, supporting biofilter health and maintaining optimal water quality for professional and hobbyist aquarists alike.

## Description

Product Description Seachem Prime 250Ml Directions Use half the cup (0.09 fl oz (2.5 ml) for new 10.2 gal (40 L) of water. 1 bottle can handle 4000L of water. You can put it directly into the aquarium, but we recommend that you treat new water in advance and put it into the aquarium 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: Strong, reliable, and multi-use—solid water treatment for chlorine, ammonia, and nitrite control. - This bottle’s built for serious water prep—removes chlorine, chloramine, detoxifies ammonia and nitrite, and supports biofilter health. Geared toward freshwater and marine tanks, whether you’re doing full water changes or topping up. One capful treats 200L, so the 500ml bottle lasts ages. Works well in van stash, fish rooms, or home aquariums where water quality needs to stay tight. No smell, no clouding, and safe for all species. Ideal for new setups, emergency spikes, or routine maintenance. Can be used alongside meds and other treatments without clashing. Best dosed with a syringe or pipette for accuracy—cap measurements are rough. 👍 Pros ✅ Highly concentrated—small dose, big coverage ✅ Detoxifies ammonia and nitrite—supports cycling ✅ Safe for all fish, inverts, and plants ✅ No smell or residue—clean dosing ✅ Long shelf life—stays potent 👎 Cons ❌ Cap dosing is vague—use a syringe for precision ❌ No colour indicator—can’t see it in water ❌ Not a full-on bacteria booster—use with bio support if needed
Review: Great product. One of the best. - Always use this product with other seachem products. One of the best and cheaper on desertcart than I have seen. Generally I use after a water change. I use with clarity and the water quality is at its best when used. Very effective in keeping water quality and cost effective buying bigger bottles. Works quickly so I know my aquarium and fish are safe.

## Features

- Complete and concentrated conditioner for both fresh and saltwater
- Removes chlorine, chloramine
- Detoxiﬁes ammonia, nitrite, and nitrate
- Model number: 020042

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002568S6 |
| Allergen Information | Gluten Free |
| Batteries Included | No |
| Batteries required | No |
| Best Sellers Rank | 318 in Automotive ( See Top 100 in Automotive ) 8 in Greases & Lubricants |
| Colour | clear |
| Customer Reviews | 4.8 4.8 out of 5 stars (36,055) |
| Date First Available | 24 Oct. 2009 |
| External Testing Certification | Não aplicável |
| Item Form | Liquid |
| Item Weight | 289 g |
| Item model number | 67104360 |
| Number of Items | 1 |
| Pet Life Stage | All Life Stages |
| Pet Type | Fish |
| Product Dimensions | 15.49 x 4.57 x 4.57 cm; 289.17 g |
| Quantity | 1 |
| Size | 250 ml |
| Specific Uses | Aquarium water |
| Volume | 250 Millilitres |

## Product Details

- **Brand:** Seachem
- **Item form:** Liquid
- **Item weight:** 10.2 Ounces
- **Liquid volume:** 250 Millilitres
- **Manufacturer:** Seachem

## Images

![Seachem Prime Water Conditioner, 250 ml - Image 1](https://m.media-amazon.com/images/I/21S3faJvidL.jpg)
![Seachem Prime Water Conditioner, 250 ml - Image 2](https://m.media-amazon.com/images/I/51MDQbnV8hL.jpg)
![Seachem Prime Water Conditioner, 250 ml - Image 3](https://m.media-amazon.com/images/I/61DVJNjihJL.jpg)
![Seachem Prime Water Conditioner, 250 ml - Image 4](https://m.media-amazon.com/images/I/61QTPBg3NNL.jpg)
![Seachem Prime Water Conditioner, 250 ml - Image 5](https://m.media-amazon.com/images/I/61aPb4rk8cL.jpg)

## Questions & Answers

**Q: Instruction reads use 1 capful for every 50 gallons of new water. So a 35% change on 55 gal. tank, takes 1/4 cap? Sounds too good to be true.**
A: Per Seachem's instructions, if you are doing a partial water change of 35%, if you are adding water directly from the tap (such as with a water changer such as a Python or Aqueon) you add enough Prime for the volume of the whole tank.   On the other hand, if you're removing 35% and then adding the water using a bucket, you can dechlorinate the amount of each bucket.  For example, if you're using a 3 gallon bucket, 6 drops Prime per bucket, and then add that to the tank.   The Prime works almost immediately, so just add the drops to the bucket, and then it is ready to pour into your tank.

**Q: How long does it take to work when setting up a new tank?  Thanks!!**
A: this removes the chlorine, etc. almost immediately, I add it to the aquarium when doing water changes, ands just pour the water into the tank. remember this just removes the harmful chemicals,  your tank will still have to cycle through the nitrogen cycle if you are setting up a new tank.

**Q: I end up with alot of foam at the top of my aquariums when I add prime,Have I added too much to my tap water changes,My Tap water is high in iron**
A: The small bottle of prime has a flip cap which allows you to add drops. If you have the large bottle of Prime use an eye dropper.  When doing a water change, fill a clean, never seen soap or chemicals bucket of fresh water and add Prime to this fresh water, not directly into your tank - 2 drops per gallon.  I also do not get foam.  I do a 50 - 60 percent water change weekly along with a gravel vac.   If you are stll getting foam after a gravel vac and water change I would suggest you give Seachem a call. They have great customer service.  When cleaning your tank, give your filter sponge, floss a swish around in used tank water also to remove some of the gunk and put right back in. Do not rinse in untreated fresh water, by doing so you can lose your cycle.

**Q: I'm looking to remove chlorine from my pool, will this work?**
A: It will work but there may be less expensive options from a pool dealer. It decholorinates any typerson of water.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Strong, reliable, and multi-use—solid water treatment for chlorine, ammonia, and nitrite control.
*by G***E on 20 September 2025*

This bottle’s built for serious water prep—removes chlorine, chloramine, detoxifies ammonia and nitrite, and supports biofilter health. Geared toward freshwater and marine tanks, whether you’re doing full water changes or topping up. One capful treats 200L, so the 500ml bottle lasts ages. Works well in van stash, fish rooms, or home aquariums where water quality needs to stay tight. No smell, no clouding, and safe for all species. Ideal for new setups, emergency spikes, or routine maintenance. Can be used alongside meds and other treatments without clashing. Best dosed with a syringe or pipette for accuracy—cap measurements are rough. 👍 Pros ✅ Highly concentrated—small dose, big coverage ✅ Detoxifies ammonia and nitrite—supports cycling ✅ Safe for all fish, inverts, and plants ✅ No smell or residue—clean dosing ✅ Long shelf life—stays potent 👎 Cons ❌ Cap dosing is vague—use a syringe for precision ❌ No colour indicator—can’t see it in water ❌ Not a full-on bacteria booster—use with bio support if needed

### ⭐⭐⭐⭐⭐ Great product. One of the best.
*by S***H on 6 December 2025*

Always use this product with other seachem products. One of the best and cheaper on amazon than I have seen. Generally I use after a water change. I use with clarity and the water quality is at its best when used. Very effective in keeping water quality and cost effective buying bigger bottles. Works quickly so I know my aquarium and fish are safe.

### ⭐⭐⭐⭐⭐ Have been using this for years
*by P***M on 1 April 2023*

I've been using Seachem Prime Water Conditioner for years. One of the things I appreciate most about Seachem Prime is that it's very concentrated. I only need to use a small amount of the conditioner to treat my entire tank, which means that a single bottle lasts for a long time. This is particularly important for me, as I have a large tank and was previously using a less concentrated water conditioner that required me to use more of the product. Another great thing about Seachem Prime is that it's very easy to use. I simply add the recommended amount of conditioner to my tank each time I do a water change, and it does the rest of the work. Seachem Prime also has the added benefit of not affecting the pH level of my tank. This is particularly important for me, as I have a delicate ecosystem in my tank that requires a consistent pH level. I've found that some other water conditioners can cause fluctuations in pH levels, which can be harmful to my fish and plants. With Seachem Prime, I don't have to worry about this issue. Overall, I would definitely recommend Seachem Prime Water Conditioner to any fish owner looking for an effective and concentrated water conditioner. It does a great job of detoxifying tap water and keeping my fish healthy, without affecting the pH level of my tank. Plus, the concentrated formula means that a single bottle will last for a long time, making it a great value for the price.

## Frequently Bought Together

- Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 250 ml
- Seachem Stability Fish Tank Stabilizer - For Freshwater and Marine Aquariums, 16.9 Fl Oz (Pack of 1)
- API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, White, Single, Multi-colored

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-01-27*