---
product_id: 2334258
title: "Seachem Prime -500 ml/ 17 fl. oz. | Chemical Remover and Detoxifier"
brand: "seachem"
price: "29427CFA"
currency: XOF
in_stock: true
reviews_count: 13
url: https://www.desertcart.sn/products/2334258-seachem-prime-500-ml-17-fl-oz-chemical-remover-detoxifier
store_origin: SN
region: Senegal
---

# Safe for freshwater & saltwater tanks Detoxifies ammonia & nitrite for 48h Removes chlorine & chloramine instantly Seachem Prime -500 ml/ 17 fl. oz. | Chemical Remover and Detoxifier

**Brand:** seachem
**Price:** 29427CFA
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your fish thriving with the pro’s choice in water care!

## Quick Answers

- **What is this?** Seachem Prime -500 ml/ 17 fl. oz. | Chemical Remover and Detoxifier by seachem
- **How much does it cost?** 29427CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/2334258-seachem-prime-500-ml-17-fl-oz-chemical-remover-detoxifier)

## 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

- • **Ultimate Water Detox:** Neutralizes harmful ammonia, nitrite, and heavy metals to keep your aquatic ecosystem thriving.
- • **Versatile for All Tanks:** Perfectly formulated for both freshwater and saltwater environments—one solution for every aquarium.
- • **Trusted Science-Backed Formula:** Over 30 years of expertise from passionate aquarists and chemists guarantees reliable, proven performance.
- • **Precision Dosing for Maximum Safety:** Easily adjustable doses for any tank size or emergency situations, ensuring optimal water quality.
- • **Instant Chlorine & Chloramine Removal:** Protect your fish immediately with powerful, fast-acting water conditioning.

## Overview

Seachem Prime is a concentrated aquarium water conditioner that instantly removes chlorine and chloramine while detoxifying ammonia, nitrite, and heavy metals for up to 48 hours. Suitable for both freshwater and saltwater tanks, it supports biofilter efficiency and fish health with precise dosing options. Backed by over three decades of scientific expertise and trusted by hobbyists worldwide, it remains the #1 ranked aquarium water treatment.

## Description

Seachem Prime is a complete and concentrated conditioner for both freshwater and saltwater fish tanks, working hard to remove chlorine and chloramine. For over three decades, Seachem has been a company rooted in sound science. Our experience in the hobby and an educated staff of chemists and biologists are part of the package when you purchase Seachem products. Seachem remains as one of the few surviving independent and privately owned pet care companies. Seachem is owned and operated by hobbyists. All of our employees are hobbyists who maintain aquariums at home and at the office. Seachem itself was started because one such passionate hobbyist - Dr. Leo G. Morin (Founder) - recognized that the available solutions to aquarists problem wanting. This resulted in Seachem’s very first product: Cupraplex (today known as Cupramine). Over thirty years later Seachem is still approaching old problems in a new way. Seachem’s philosophy is that the knowledgeable hobbyist makes the best customer. This is reflected in solid and reliable customer education and support as well as products proven in science and performance. While Seachem has grown rapidly into a national and international firm, it retains the culture of a small company and is readily available to its customers.

## Features

- POWERFUL TREATMENT: Seachem Prime is a complete and concentrated conditioner for both freshwater and saltwater fish tanks, working hard to remove chlorine and chloramine.
- REMOVER: Seachem Prime immediately and permanently removes chlorine and chloramine, successfully allowing the bio filter to remove ammonia, nitrite, and nitrate while they are detoxified for 48 hours.
- DETOXIFIER: Seachem Prime effectively detoxifies ammonia, nitrite, and heavy metals found in the tap water at typical concentration levels, providing a ideal environment for your betta, tetra, or other fish.
- USE: Use 1 capful (5 mL) of Seachem Prime for each 200 L (50 US gallons) of new or replacement water. For best results, add Seachem Prime to new water first. For exceptionally high chloramine concentrations, a double dose may be used safely. For smaller volumes, use 2 drops per gallon.
- SAFETY: In case of an emergency, the 5x dose of Seachem Prime may be used for both ammonia and nitrite. Use a ½ dose if the water temperature is > 30°C (86°F) and chlorine or ammonia levels are low.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B00025694O |
| Best Sellers Rank | #1 in Aquarium Water Treatments |
| Date First Available | June 20, 2004 |
| Department | men, women |
| Item Model Number | 67104330 |
| Manufacturer | Seachem Laboratories, Inc. |
| Product Dimensions | 6.6 x 2.5 x 2.3 inches; 1.3 pounds |

## Product Details

- **Brand:** Seachem
- **Item Form:** Liquid
- **Item Weight:** 1.3 pounds
- **Liquid Volume:** 500 ml
- **Number of Packs:** 1

## Images

![Seachem Prime -500 ml/ 17 fl. oz. | Chemical Remover and Detoxifier - Image 1](https://m.media-amazon.com/images/I/71k+2wVR8RL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## 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

### ⭐⭐⭐⭐⭐ 20+ Years of Flawless Performance!
*by  on Reviewed in the United States May 29, 2025*

As someone who's been deeply involved in the aquarium hobby for over two decades, I can confidently say that Seachem Prime is, without a doubt, the single most essential product in my fish room. I was introduced to Prime when I first started out, and it quickly became the cornerstone of my water care routine. Twenty-plus years later, it remains the only water conditioner I trust and use in all my tanks.Prime does exactly what it promises, and it does it exceptionally well. It instantly neutralizes chlorine, chloramine, and ammonia, making tap water safe for your aquatic inhabitants. Beyond that, it detoxifies nitrite and nitrate, which is a huge bonus, especially during cycling or in emergency situations. The fact that it does all of this in a concentrated formula means a little goes a very long way, making the 1L bottle incredibly economical and long-lasting.What truly sets Prime apart, for me, is its reliability and the peace of mind it provides. I've never had a single issue with water parameters or fish health that could be attributed to Prime. It's truly a "set it and forget it" product that allows me to focus on the joy of the hobby rather than worrying about water quality.If you're new to the hobby, do yourself a favor and start with Prime. If you're a seasoned aquarist looking for the best, you already know what I'm talking about. I exclusively use Seachem products in my tanks because their quality and effectiveness are unmatched, and Prime is the shining star of their lineup. This isn't just a water conditioner; it's an investment in the health and longevity of your aquatic ecosystem. Five stars, hands down!

### ⭐⭐⭐⭐⭐ Simple and Effective Dechlorinator
*by  on Reviewed in the United States August 13, 2026*

I use Seachem Prime whenever I do water changes for my aquarium. It is very concentrated, so only a small amount is needed each time, and one bottle lasts quite a while.It works well as a dechlorinator, so I do not need to let tap water sit in advance before adding it to the tank. This makes regular water changes much more convenient. I also like that it treats both chlorine and chloramine.Overall, it is a simple, reliable, and economical water conditioner for regular aquarium maintenance.

### ⭐⭐⭐⭐⭐ Highly Concentrated and Bottle Lasts a Long Time
*by  on Reviewed in the United States July 10, 2026*

I've been using Seachem Prime for a couple of years in both our school aquatics system and my own freshwater aquariums, and it has become my go-to water conditioner. This 500 mL bottle lasts a long time. It treats over 5,000 gallons of water, so even with regular water changes, it takes quite a while to use up. I measure the correct amount with a pipette for my 36-gallon and 15-gallon tanks, while our school's aquaponics system holds over 600 gallons, so we simply add the appropriate dose whenever we refill the system.We primarily use Prime to remove chlorine and chloramines from tap water, but we've also relied on it during times when ammonia levels began to rise. For larger tanks, one capful treats up to 50 gallons, while our smaller 10 and 20 gallon classroom tanks only require two drops per gallon. The liquid does have a slight sulfur-like smell in the bottle, but it quickly disappears once it's added to the water.Over the years, our water testing has consistently shown safe water conditions after treatment, and it has been a dependable part of maintaining healthy aquariums and our aquaponics system. Overall, this is an easy-to-use, highly concentrated water conditioner that goes a long way and has worked very well for both my home and classroom tanks.

## Frequently Bought Together

- Seachem Prime Fresh and Saltwater Conditioner - Chemical Remover and Detoxifier 500 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 Senegal*
*Store origin: SN*
*Last updated: 2026-08-23*