---
product_id: 59762924
title: "M50"
brand: "fluval"
price: "£27.55"
currency: GBP
in_stock: null
reviews_count: 13
category: "Fluval"
url: https://www.desertcart.co.uk/products/59762924-m50
store_origin: GB
region: United Kingdom
---

# Shock-resistant borosilicate glass Reflective mirror tech 50W precise heating M50

**Brand:** fluval
**Price:** £27.55
**Availability:** ❌ Out of Stock

## Summary

> 🌊 Heat your tank, not your style – invisible warmth for vibrant aquatic life!

## Quick Answers

- **What is this?** M50 by fluval
- **How much does it cost?** £27.55 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/59762924-m50)

## 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

- • **Built to Last:** Durable borosilicate glass and ceramic heat sink deliver safe, even heat distribution.
- • **Slim & Discreet:** Compact design fits effortlessly in small tanks without obstructing your aquarium’s view.
- • **Invisible Elegance:** Reflective mirror technology blends seamlessly into your tank for a sleek, minimalist look.
- • **Perfect for Small Aquariums:** Optimized 50W power for freshwater and saltwater tanks up to 15 gallons.
- • **Precision Temperature Control:** Computer-calibrated thermostat ensures stable, accurate warmth for thriving aquatic life.

## Overview

The Fluval M50 is a 50-watt submersible glass aquarium heater featuring a computer-calibrated thermostat for precise temperature control. Its innovative reflective mirror technology makes it virtually invisible inside your tank, while durable borosilicate glass and a ceramic heat sink ensure safe, even heating. Slim and easy to install, it’s ideal for freshwater and saltwater aquariums up to 15 gallons, providing a stable environment for healthy fish and plants.

## Description

Free delivery and returns on eligible orders. Buy Fluval M50 Submersible Glass Aquarium Heater (50 watts) at desertcart UK.

Review: Not a bad investment. - Love it. Works a great for my 57L fluval flex tank. Looks as if it warms the water without pushing itself to the limit. The control is not very accurate though so watch out for that.
Review: Fluval M50 Submersible Glass Aquarium Heater (50 watts) - a good product does its job perfectly

## Features

- Precision Temperature Control: The Fluval M 50-Watt Submersible Heater features a computer-calibrated thermostat for consistent, accurate heating. The easy-to-adjust temperature control dial ensures a stable aquatic environment for your fish and plants
- Reflective Mirror Technology: Designed to seamlessly blend into your aquarium, this heater uses built-in reflective technology that mirrors surrounding colors, making it virtually invisible while maintaining tank aesthetics
- Durable & Safe Materials: Constructed with shock-resistant Borosilicate glass and a high-density ceramic heat sink, this heater is built to withstand aquatic conditions while ensuring even heat distribution for a safe and efficient heating solution
- Slim & Easy to Install: The Fluval M Series heater features a slim profile tube, making it simple to install and position discreetly in your aquarium. Its compact design ensures minimal space usage, allowing for an unobstructed tank view
- Ideal for Small Aquariums: With a 50-watt power rating, this submersible heater is perfect for freshwater and saltwater aquariums up to 15 gallons. Keep your aquatic environment warm and stable for healthy, thriving fish and plants

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0027VMPXA |
| Brand | Fluval |
| Colour | Silver |
| Country Of Origin | Italy |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,955) |
| Global Trade Identification Number | 00015561107815 |
| Included Components | Fluval M50 50W Submersible Glass Aquarium Heater |
| Item Type Name | Submersible Heater |
| Item Weight | 0.62 Pounds |
| Manufacturer | Fluval |
| Material Type | Glass |
| UPC | 015561107815 |
| Unit Count | 1 Count |
| Wattage | 50 watts |

## Product Details

- **Brand:** Fluval
- **Colour:** Silver
- **Item weight:** 0.62 Pounds
- **Material:** Glass
- **Wattage:** 50 watts

## Images

![M50 - Image 1](https://m.media-amazon.com/images/I/71JRKsqOfHL.jpg)
![M50 - Image 2](https://m.media-amazon.com/images/I/91-t+FwADQL.jpg)
![M50 - Image 3](https://m.media-amazon.com/images/I/81CHh1+rx2L.jpg)
![M50 - Image 4](https://m.media-amazon.com/images/I/81lBwwrivML.jpg)
![M50 - Image 5](https://m.media-amazon.com/images/I/71oUhu5PtIL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Not a bad investment.
*by A***A on 25 April 2021*

Love it. Works a great for my 57L fluval flex tank. Looks as if it warms the water without pushing itself to the limit. The control is not very accurate though so watch out for that.

### ⭐⭐⭐⭐⭐ Fluval M50 Submersible Glass Aquarium Heater (50 watts)
*by I***S on 9 November 2020*

a good product does its job perfectly

### ⭐⭐⭐⭐⭐ Works
*by M***E on 12 December 2020*

Serves its purpose and easy to install

## Frequently Bought Together

- Fluval M 50-Watt Submersible Heater
- PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic
- Hagen Flex Freshwater Kit - Black - 15 gal

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**Shop now:** [https://www.desertcart.co.uk/products/59762924-m50](https://www.desertcart.co.uk/products/59762924-m50)

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-05-20*