---
product_id: 9840230
title: "Water Conditioner for Aquarium, 8.4-Ounce"
brand: "fluval"
price: "€ 15.64"
currency: EUR
in_stock: true
reviews_count: 13
category: "Fluval"
url: https://www.desertcart.pt/products/9840230-water-conditioner-for-aquarium-8-4-ounce
store_origin: PT
region: Portugal
---

# Stress-free fish environment Instant water detox Protects scales & fins Water Conditioner for Aquarium, 8.4-Ounce

**Brand:** fluval
**Price:** € 15.64
**Availability:** ✅ In Stock

## Summary

> 💧 Keep your aquarium flawless and your fish thriving — because they deserve the best!

## Quick Answers

- **What is this?** Water Conditioner for Aquarium, 8.4-Ounce by fluval
- **How much does it cost?** € 15.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/9840230-water-conditioner-for-aquarium-8-4-ounce)

## Best For

- fluval enthusiasts

## Why This Product

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

## Key Features

- • **Generous 8.4 oz Size:** Long-lasting supply perfect for multiple water changes, maximizing value and convenience.
- • **Instant Tap Water Detox:** Neutralizes chlorine & chloramine immediately for crystal-clear, safe water.
- • **Stress-Free Aquatic Habitat:** Formulated to reduce fish stress during water changes, ensuring happy, healthy fish.
- • **Protective Scale & Fin Shield:** Coats delicate fish scales and fins to prevent damage and promote vitality.
- • **Trusted by Aquarists Worldwide:** Highly rated with 4.7 stars and proven performance for all life stages of tropical fish.

## Overview

Fluval Water Conditioner (8.4 oz) instantly detoxifies tap water by neutralizing chlorine and chloramine, creating a stress-free environment that protects fish scales and fins. Trusted by aquarists for its fast action and reliable performance, it’s the essential solution for maintaining crystal-clear, healthy aquatic habitats.

## Description

Fluval Water Conditioner for Aquarium, 8.4-Ounce

Review: Great product!! - Water quality is amazing super clear after putting this product in my fish tank, the product spreads fast and works immediately, it does the job, after the pour I waited 10 min to put the fish in and no shock was seen nor any stress in the fish
Review: Works fast and no Problems - Did a partial water change, put in the proper amount of additive, and added water. All the fish were fine after the water change. I have been using Fluval brand of water conditioner for my Betta fish tanks and 20-gallon hex for about a year and a half and have had no issues! Also, it is always a really good price and you get a lot of product! Also, it removes chloramine, which not all conditioners do. The only thing that I can say about this that is negative is the measuring cup that comes with it does not measure for anything smaller than 10 gallons. So for my 3-gallon tank, I have to measure for myself using some estimation on the cap. I’ve never had an issue with this, but it is just a tiny bit less convenient. Used to buy it at my fish store, but as usual, desertcart has the best price and it's delivered fast to your door!

## Features

- Complete tap water conditioner
- Improves aquatic environments for tropical fish
- Reduces Stress for Fish
- Coats and protects scales and fins
- Size: 8.4 oz.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00FPIZ930 |
| ASIN  | B00FPIZ930 |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #32,290 in Pet Supplies ( See Top 100 in Pet Supplies ) #305 in Aquarium Water Treatments |
| Brand Name | Fluval |
| Color | Multicolor |
| Customer Reviews | 4.7 4.7 out of 5 stars (4,760) |
| Date First Available | October 1, 2013 |
| Date First Available  | October 1, 2013 |
| Department | Unisex-Adult |
| Department  | Unisex-Adult |
| Directions | Follow individual packaging instructions. |
| Included Components | Fluval Water Conditioner for Aquarium, 8.4-Ounce |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 2.3 x 2.3 x 2.3 inches |
| Item Package Dimensions L x W x H | 5.87 x 2.2 x 2.17 inches |
| Item Weight | 10.08 ounces |
| Item model number | A8343 |
| Item model number  | A8343 |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer  | Rolf C. Hagen (USA) Corp. |
| Material | Plastic |
| Model Name | Fluval Water Conditioner for Aquarium, 8.4-Ounce |
| Number of Items | 1 |
| Product Dimensions  | 2.3 x 2.3 x 2.3 inches; 10.08 ounces |
| Size | 8.4 oz. |
| Specific Uses for Product | Indoor |
| Style | Water Conditioner |
| Target Audience Keyword | fish |
| Warranty Description | Warranty |

## Product Details

- **Brand:** Fluval
- **Item Form:** Liquid
- **Item Weight:** 10.08 ounces
- **Liquid Volume:** 8.4 Fluid Ounces
- **Manufacturer:** Rolf C. Hagen (USA) Corp.

## Images

![Water Conditioner for Aquarium, 8.4-Ounce - Image 1](https://m.media-amazon.com/images/I/51NtcN0ndcL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is there a measurement system for adding 2.5 Ml to accurately add the right amount?**
A: The top of the bottle is used to measure the amounts.

**Q: Is it possible to put too much in a tank?**
A: nope! I overdose everytime I add water or do water changes lol. If I'm only adding a few gallons I just pour a little in the pitcher with each gallon I fill up so I know sometimes I too much comes out too fast. 
trust me if there was such a thing as an overdose on this I would know it lol!

**Q: Is it safe for Aquirum plants**
A: Yes

**Q: Tank came with sample of fluval aqua plus and fluval cycle but no instructions in tank or on bottles.  what is the ratio?  i have a 2.5 gallon tank.**
A: You are better off getting  some seachem prime way better I only got the fluval 2 times befor I found prime

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product!!
*by A***O on August 21, 2025*

Water quality is amazing super clear after putting this product in my fish tank, the product spreads fast and works immediately, it does the job, after the pour I waited 10 min to put the fish in and no shock was seen nor any stress in the fish

### ⭐⭐⭐⭐⭐ Works fast and no Problems
*by ☕***☕ on January 23, 2020*

Did a partial water change, put in the proper amount of additive, and added water. All the fish were fine after the water change. I have been using Fluval brand of water conditioner for my Betta fish tanks and 20-gallon hex for about a year and a half and have had no issues! Also, it is always a really good price and you get a lot of product! Also, it removes chloramine, which not all conditioners do. The only thing that I can say about this that is negative is the measuring cup that comes with it does not measure for anything smaller than 10 gallons. So for my 3-gallon tank, I have to measure for myself using some estimation on the cap. I’ve never had an issue with this, but it is just a tiny bit less convenient. Used to buy it at my fish store, but as usual, Amazon has the best price and it's delivered fast to your door!

### ⭐⭐⭐⭐⭐ Does the job
*by A***R on December 1, 2025*

Keeps tap water safe. Fish is alive and happy with clean water

## Frequently Bought Together

- Fluval Water Conditioner for Aquarium, 8.4-Ounce
- Fluval Waste Control Biological Cleaner, Aquarium Water Treatment, 8.4 Oz., A8355
- Fluval Cycle Biological Enhancer, Aquarium Water Treatment, 8.4 Oz., A8349

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-31*