---
product_id: 48226688
title: "Cycle Water Treatment, 500 ml"
brand: "fluval"
price: "B/.88"
currency: PAB
in_stock: true
reviews_count: 8
category: "Fluval"
url: https://www.desertcart.com.pa/products/48226688-cycle-water-treatment-500-ml
store_origin: PA
region: Panama
---

# Instant bio environment Fresh & saltwater safe Powerful ammonia & nitrite control Cycle Water Treatment, 500 ml

**Brand:** fluval
**Price:** B/.88
**Availability:** ✅ In Stock

## Summary

> 🐠 Transform your tank into a thriving aquatic paradise—fast, safe, and effortless!

## Quick Answers

- **What is this?** Cycle Water Treatment, 500 ml by fluval
- **How much does it cost?** B/.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/48226688-cycle-water-treatment-500-ml)

## 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

- • **Trusted by Thousands:** Top-rated with 4.6 stars from over 6,500 reviews—join the community of happy fish keepers.
- • **Fish-Ready From Day One:** Allows immediate introduction of fish—no waiting, just enjoying your vibrant tank.
- • **Versatile for Every Tank:** Perfectly formulated for both fresh and saltwater aquariums, no compromises.
- • **Ammonia & Nitrite? Handled.:** Rapidly eliminates harmful toxins to keep your fish safe and stress-free.
- • **Kickstart Your Aquarium’s Life:** Immediately establishes a safe biological environment for thriving aquatic life.

## Overview

Fluval Cycle Water Treatment (500 ml) is a premium liquid formula designed to instantly establish a safe biological environment in both fresh and saltwater aquariums. It effectively eliminates ammonia and nitrite toxins, preventing fish loss and allowing immediate fish introduction. Trusted by thousands with a 4.6-star rating, this treatment supports healthy nitrogen cycling and ensures vibrant, stress-free aquatic life.

## Description

Free delivery and returns on eligible orders. Buy Fluval Cycle Water Treatment, 500 ml at desertcart UK.

Review: Maintain a healthy Aquarium - I use this product when setting up a new aquarium (as part of the nitrogen cycle to promote healthy ammonia eating bacteria growth, a 6 to 8 week process) and as part of my weekly water changes. I feel that this product works very well, as my fish are all happy and healthy and I have never experienced any bad water quality issues (ammonia spikes etc). I use this weekly to add to my 200ltr, 60ltr and 30ltr aquariums when I do a water change. I change 20% - 30% of the water volume and add an appropriate dose of this stuff, however it's not really possible to overdose so it does not really matter if you add a little bit extra. I usually do add a bit more than stated on the label. I keep it stored at room temperature and the 2ltr bottle usually lasts me about 6 weeks. There is always a seal covering the opening after the lid has been unscrewed, so you know it is brand new and has not been opened / tampered with. This is safe for my fresh water aquarium inhabitants, of which I have many varieties. Pros: - The larger 2ltr bottle is excellent value compared to the 250ml or 500ml bottles - Quick delivery / repeat orders available - Far cheaper than my local pet store Cons: - Nothing I can think of really I hope this review has been helpful to you. Happy Fish Keeping!
Review: Good - Does exactly as it says on the tin or bottle!!! Definitely a must have for the health of your fish to get the chlorine out of tap water and help control ammonia.

## Features

- Immediately establishes safe biological aquarium environment
- Powerful responsive ammonia and nitrite elimination
- Prevents fish loss
- Allows immediate introduction of fish
- For Fresh and Saltwater Use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00G25IAN6 |
| Best Sellers Rank | 1,505 in Pet Supplies ( See Top 100 in Pet Supplies ) 14 in Aquarium Water Treatments |
| Brand | Fluval |
| Brand Name | Fluval |
| Country Of Origin | Canada |
| Customer Reviews | 4.6 out of 5 stars 6,501 Reviews |
| Global Trade Identification Number | 00015561183512 |
| Item Form | Liquid |
| Item Type Name | Cycle Biological Aquarium water treatment |
| Item Weight | 0.52 Kilograms |
| Item form | Liquid |
| Item weight | 0.52 Kilograms |
| Liquid Volume | 16.9 Fluid Ounces |
| Liquid volume | 16.9 Fluid Ounces |
| Manufacturer | Rolf C Hagen UK Ltd |
| Pet Type | Fish |
| Target Species | Fish |
| UPC | 015561109703 015561183512 |
| Unit Count | 1 count |

## Product Details

- **Brand:** Fluval
- **Item form:** Liquid
- **Item weight:** 0.52 Kilograms
- **Liquid volume:** 16.9 Fluid Ounces
- **Manufacturer:** Rolf C Hagen UK Ltd

## Images

![Cycle Water Treatment, 500 ml - Image 1](https://m.media-amazon.com/images/I/71qzj+FGElL.jpg)

## Available Options

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

## Questions & Answers

**Q: i have a 240l tank how much cycle do i use in my tank it is a new tank.**
A: Tip the whole bottle in your filter

**Q: Can this be used to boost some established bio media in a new tank?**
A: Yes definately. Put it in the tank as instructions say. Then keep putting a min og 10 ml in until your happy. I used it for setting up new 200 ltr tank and it's the only stuff I used after that.

**Q: Can I use this in salt water?**
A: Having read the information on the back of the bottle it says that it is safe for use in fresh and salt water aquariums.

**Q: I want to add new fish into my established tank. Can I add this into the tank, let the bag with new fish float for a while then release the fish?**
A: No! What you must do is add this after following the instructions and leave for a few days for the bacteria to establish a proper environment for the fish before they are added. Try reading a book or 3 on setting up a fish tank.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Maintain a healthy Aquarium
*by M***D on 3 April 2021*

I use this product when setting up a new aquarium (as part of the nitrogen cycle to promote healthy ammonia eating bacteria growth, a 6 to 8 week process) and as part of my weekly water changes. I feel that this product works very well, as my fish are all happy and healthy and I have never experienced any bad water quality issues (ammonia spikes etc). I use this weekly to add to my 200ltr, 60ltr and 30ltr aquariums when I do a water change. I change 20% - 30% of the water volume and add an appropriate dose of this stuff, however it's not really possible to overdose so it does not really matter if you add a little bit extra. I usually do add a bit more than stated on the label. I keep it stored at room temperature and the 2ltr bottle usually lasts me about 6 weeks. There is always a seal covering the opening after the lid has been unscrewed, so you know it is brand new and has not been opened / tampered with. This is safe for my fresh water aquarium inhabitants, of which I have many varieties. Pros: - The larger 2ltr bottle is excellent value compared to the 250ml or 500ml bottles - Quick delivery / repeat orders available - Far cheaper than my local pet store Cons: - Nothing I can think of really I hope this review has been helpful to you. Happy Fish Keeping!

### ⭐⭐⭐⭐⭐ Good
*by P***L on 3 May 2025*

Does exactly as it says on the tin or bottle!!! Definitely a must have for the health of your fish to get the chlorine out of tap water and help control ammonia.

### ⭐⭐⭐⭐⭐ Used for years.great product.
*by J***N on 19 November 2025*

Does what it says.

## Frequently Bought Together

- Fluval Cycle Biological Enhancer, Aquarium Water Treatment, 16.9 Oz., A8351
- Fluval Waste Control Biological Cleaner, Aquarium Water Treatment, 8.4 Oz., A8355
- Fluval AquaPlus Water Conditioner, Aquarium Water Treatment, 16.9 Oz., A8344

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.com.pa/products/48226688-cycle-water-treatment-500-ml](https://www.desertcart.com.pa/products/48226688-cycle-water-treatment-500-ml)

---

*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-02-08*