---
product_id: 252884952
title: "Fluval P50 Submersible Aquarium Heater"
brand: "fluval"
price: "R$485"
currency: BRL
in_stock: true
reviews_count: 13
category: "Fluval"
url: https://www.desertcart.com.br/products/252884952-fluval-p50-submersible-aquarium-heater
store_origin: BR
region: Brazil
---

# Fully submersible & waterproof Preset 76-78°F stable temp Shatterproof polymer housing Fluval P50 Submersible Aquarium Heater

**Brand:** fluval
**Price:** R$485
**Availability:** ✅ In Stock

## Summary

> 🌊 Keep your tank thriving with hassle-free, fail-safe warmth!

## Quick Answers

- **What is this?** Fluval P50 Submersible Aquarium Heater by fluval
- **How much does it cost?** R$485 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/252884952-fluval-p50-submersible-aquarium-heater)

## 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

- • **Instant Heat Status:** LED indicator keeps you in the know—no surprises, just perfect temps.
- • **Sleek, Compact Design:** Fits seamlessly in tanks up to 15 gallons without clutter or fuss.
- • **Effortless Precision Heating:** Preset temperature means zero guesswork—just plug and relax.
- • **Built to Last, Built for Safety:** Durable polymer casing protects your aquatic friends and your investment.
- • **Versatile for Fresh & Saltwater:** Engineered to support diverse aquatic ecosystems with reliable warmth.

## Overview

The Fluval P50 Submersible Aquarium Heater delivers consistent, preset heating at 76-78°F for tanks up to 15 gallons. Its shatterproof polymer housing ensures durability and safety, while the fully submersible, waterproof design offers flexible placement. An LED indicator light provides real-time heating status, making it an ideal, low-maintenance solution for tropical freshwater and saltwater aquariums.

## Description

Keep your aquarium water at the perfect temperature with the Fluval P50 Submersible Aquarium Heater. This 50W heater is preset to 76-78°F (24-26°C) for effortless, hands-free operation in freshwater and saltwater tanks up to 15 gallons (57L). Its shatterproof polymer housing ensures safety, while the fully submersible, waterproof design allows flexible positioning. An LED indicator light shows when it’s heating, making it easy to monitor. Reliable, durable, and easy to use!

Review: Compact and durable - I like the size of the heater and works well.
Review: Should've got something else - Edit: It died right at a year in another tank(couldn't let it go to waste). Fluval wants me to ship it on my own dime and pay for return shipping. So it's cheaper to buy a brand new one. Consider this when thinking long term about this heater. First off, I got a DOA. This isn't a big deal, but I should mention it out of the gate. That said, I really do love Fluval products. The heater was purchased for a Fluval Evo 13.5 to replace the glass one that's too long. While the heater is really compact, the suction cup is useless after a week. So it will fall down on top of the return pump. This warped the case of the pump a bit and made it hard to take off and on. I ended up rigging it up with the power cord to keep it from doing more damage. It keeps the water at 80-82°F (26.6-27.7°C) which is really warm for most aquariums. There's no way to change the setting. It will sometimes decide not to work dropping to 72°F (22.2°C) or work too well and jump to 84°F (28.8°C). It may do this in a single day too. This creates a really harsh environment for anything but some hardy fish. Which stinks as this is supposed to be for a nano reef tank. All in all, with the first one being DOA, a suction cup that's worthless, and the simple fact it doesn't do its actual job well I had to rate it a 1 star. I ended up with a non-Fluval brand and now can't be happier.

## Features

- Preset Temperature for Hassle-Free Heating: No adjustments required! The Fluval P50 maintains a steady 76-78°F (24-26°C), creating an optimal environment for tropical fish and aquatic life
- Shatterproof & Durable Build: Designed with a strong polymer housing, this break-resistant heater keeps your aquarium and its inhabitants safe from potential damage or overheating
- Fully Submersible & Waterproof: Compact and versatile, the fully submersible design allows for easy placement in freshwater and saltwater aquariums up to 15 gallons (57L)
- LED Heating Indicator Light: A built-in LED light illuminates when the heater is actively working, so you always know when it’s maintaining the perfect water temperature
- Reliable Heating for Small & Medium Tanks: Ideal for betta tanks, shrimp habitats, planted tanks, and reef aquariums, ensuring consistent, even heat distribution for a healthy ecosystem

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08P7VCG11 |
| Additional Features | Breathable |
| Best Sellers Rank | #22,985 in Pet Supplies ( See Top 100 in Pet Supplies ) #41 in Aquarium Heaters |
| Brand | Fluval |
| Brand Name | Fluval |
| Color | Black |
| Customer Reviews | 3.6 out of 5 stars 259 Reviews |
| Global Trade Identification Number | 10015561107454 |
| Included Components | All items listed in description |
| Item Type Name | Aquarium Heater |
| Item Weight | 9.12 ounces |
| Manufacturer | Rolf C. Hagen (USA) Corp. |
| Manufacturer Part Number | A745 |
| Material | Polymer |
| Material Type | Polymer |
| Model Number | A745 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Pet Type | Fish |
| Special Feature | Breathable |
| Specific Uses For Product | Indoor |
| Tank Volume | 15 gallons |
| UPC | 015561107457 015561108331 |
| Unit Count | 1 Count |
| Vivarium Type | Aquarium |
| Warranty Description | 2 Year Limited Warranty |

## Product Details

- **Brand:** Fluval
- **Color:** Black
- **Included Components:** All items listed in description
- **Item Weight:** 9.12 ounces
- **Material:** Polymer
- **Number of Items:** 1
- **Special Feature:** Breathable
- **Specific Uses For Product:** Indoor
- **Tank Volume:** 15 Gallons
- **UPC:** 015561107457 015561108331

## Images

![Fluval P50 Submersible Aquarium Heater - Image 1](https://m.media-amazon.com/images/I/81xPfa1CXaL.jpg)
![Fluval P50 Submersible Aquarium Heater - Image 2](https://m.media-amazon.com/images/I/81awCJndHCL.jpg)
![Fluval P50 Submersible Aquarium Heater - Image 3](https://m.media-amazon.com/images/I/81Dv99fQ2nL.jpg)
![Fluval P50 Submersible Aquarium Heater - Image 4](https://m.media-amazon.com/images/I/91EfX56BlJL.jpg)
![Fluval P50 Submersible Aquarium Heater - Image 5](https://m.media-amazon.com/images/I/81MdB+ErjuL.jpg)

## Available Options

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

## Questions & Answers

**Q: 50 watt version has hole in front cover? How big is it? Buying so baby nerite can't get into heaterto replace old heater with gaps like that**
A: if your talking about the area around the red lED its small but if worried , i would put a little dab of silicone and let dry.  then use . will tank a look and message back

**Q: The red light on mine is always on.  Is this normal or should it go off when it hits temp?  Not finding anything in the instructions.**
A: The red light always stays on. The Fluval seems to be the most reliable out of all the heaters I’ve tried. Hope this helps.

**Q: Keeps Turning off and on? Is it because maybe room temp is warm ?**
A: It has an internal thermometer. It turns off when it gets 78°

**Q: Will it auto shut off once it reaches temperature?**
A: will shut on and off . unit is preset

## Customer Reviews

### ⭐⭐⭐⭐⭐ Compact and durable
*by J***R on July 19, 2021*

I like the size of the heater and works well.

### ⭐ Should've got something else
*by T***T on August 23, 2023*

Edit: It died right at a year in another tank(couldn't let it go to waste). Fluval wants me to ship it on my own dime and pay for return shipping. So it's cheaper to buy a brand new one. Consider this when thinking long term about this heater. First off, I got a DOA. This isn't a big deal, but I should mention it out of the gate. That said, I really do love Fluval products. The heater was purchased for a Fluval Evo 13.5 to replace the glass one that's too long. While the heater is really compact, the suction cup is useless after a week. So it will fall down on top of the return pump. This warped the case of the pump a bit and made it hard to take off and on. I ended up rigging it up with the power cord to keep it from doing more damage. It keeps the water at 80-82°F (26.6-27.7°C) which is really warm for most aquariums. There's no way to change the setting. It will sometimes decide not to work dropping to 72°F (22.2°C) or work too well and jump to 84°F (28.8°C). It may do this in a single day too. This creates a really harsh environment for anything but some hardy fish. Which stinks as this is supposed to be for a nano reef tank. All in all, with the first one being DOA, a suction cup that's worthless, and the simple fact it doesn't do its actual job well I had to rate it a 1 star. I ended up with a non-Fluval brand and now can't be happier.

### ⭐⭐⭐⭐⭐ lo recomiendo
*by J***N on May 18, 2025*

buen producto

## Frequently Bought Together

- Fluval P50 Submersible Aquarium Heater – 50W, Preset 76-78°F for Freshwater & Saltwater Tanks up to 15 Gal, Shatterproof, Fully Submersible, LED Indicator, Durable & Safe Fish Tank 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
- 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 Brazil*
*Store origin: BR*
*Last updated: 2026-09-11*