---
product_id: 19523632
title: "Aquarium Fish Tank Preset Heater For Up To 40 Gallons, 100 Watts"
brand: "aqueon"
price: "168.77 DT"
currency: TND
in_stock: true
reviews_count: 8
url: https://www.desertcart.tn/products/19523632-aquarium-fish-tank-preset-heater-for-up-to-40-gallons
store_origin: TN
region: Tunisia
---

# Fully submersible Auto shut-off 78°F preset Aquarium Fish Tank Preset Heater For Up To 40 Gallons, 100 Watts

**Brand:** aqueon
**Price:** 168.77 DT
**Availability:** ✅ In Stock

## Summary

> 🐠 Dive into worry-free heating!

## Quick Answers

- **What is this?** Aquarium Fish Tank Preset Heater For Up To 40 Gallons, 100 Watts by aqueon
- **How much does it cost?** 168.77 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/19523632-aquarium-fish-tank-preset-heater-for-up-to-40-gallons)

## Best For

- aqueon enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Shatter-resistant design and auto shut-off feature for peace of mind.
- • **Versatile Capacity:** Perfectly suited for aquariums up to 40 gallons, accommodating various setups.
- • **Reliable Performance:** Accurate to ±1°F, providing a stable environment for your fish.
- • **Visual Heating Indicator:** LED light signals when your aquarium is being heated, keeping you informed.
- • **Effortless Temperature Control:** Preset to a cozy 78°F, ensuring your aquatic friends thrive.

## Overview

The Aqueon Aquarium Fish Tank Preset Heater is a reliable 100-watt heater designed for aquariums up to 40 gallons. It maintains a preset temperature of 78°F, is fully submersible, and features a shatter-resistant design. With an auto shut-off mechanism for safety and an LED indicator for heating status, this heater ensures a stable and secure environment for your aquatic life.

## Description

Aqueon Preset Aquarium Heaters require no adjusting! The preset temperature has been calibrated to 78°, appropriate for most tropical fish. It is fully submersible, constructed of shatter-resistant quartz glass and features an automatic safety shut-off to avoid overheating. The heaters include suction cups and can be placed vertically or horizontally within the aquarium.  An LED indicator light displays red when actively heating. Available in different sizes to accommodate all aquarium sizes.Aqueon products offers a wide range of items so that you can build and maintain a healthy aquatic environment. All the essentials from fish tanks, filters, lighting, food, care, and other supplies that your pet fish needs. We make it easy for you to get your first aquarium and to grow in the hobby as you become more of a fish expert with every step you take and every new thing you learn. For those seasoned hobbyists, we are committed to aquarium product innovation so that we continue to offer products that get you excited. With the Aqueon brand, it's all about the fish.Disclaimer: Variations in room temperature may cause slight deviations in the actual water temperature.

## Features

- Preset to 78 degree, accurate to plus/- 1 degree
- No adjustment required
- Shatter resistant
- Fully submersible, auto shut-off when overheats, resets when cools down
- LED light turns on when aquarium water is being heated
- Ideal for aquariums up to 30 gallons

## Images

![Aquarium Fish Tank Preset Heater For Up To 40 Gallons, 100 Watts - Image 1](https://m.media-amazon.com/images/I/81vGIVg5NwL.jpg)

## Available Options

This product comes in different **Customer Package Type, Size Name** options.

## Questions & Answers

**Q: Does this heater come with suction cups?  This heater came with a 29 gallon setup I won but it did not have suctions cups.**
A: Yes, it comes with 1 suction cup. Stay away from this product; spend a little bit more and buy one that has a lifetime warranty and you can set the temperature.

**Q: What’s the lifespan of this heater?**
A: Mine lasted less than 30 days, unfortunately it was a few days after the return cut off when I noticed this during my 3 week water and filter change

**Q: is this a timed heater ? I have been having having trouble with the light turning off**
A: I don't know that's it's timed. However initially it will stay at a preset of 78 but later it will start to keep temps of 75-77 depending on what size tank it's in. Also the black paint will chip off. Mine did within a couple months. Not good for Saltwater.  :)

**Q: If i use the 200 watt heater in a ten gallon tank will it be an issue?**
A: Might be a bit much. Usually 30 -55 gallon for a 200 watt

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best customer service ever
*by J***N on July 15, 2025*

I purchased this product because of the quality and of course the great low price but most important the outstanding customer service this seller provides, if you have an issue this seller will go above and beyond to out your concerns first, I will be definitely purchasing more products from this seller, you will not go wrong 100%.Design:This product is designed to work automatically, I don’t need to make any adjustments, the temperature is set perfect for my fish tank and will turn on and off automatically but keeping the temperature stable.

### ⭐⭐⭐⭐⭐ good heater
*by K***S on July 19, 2025*

great

### ⭐⭐⭐⭐⭐ Aquarium Heater
*by Q***R on May 23, 2025*

Solid build quality as it feels like a sturdy heater. No loose pieces . Heats up the 20 gallon tank fast. I am surprised at how well it works and how fast it heats up. It keeps the temp steady, no settings to fiddle around. This is best for tropical aquatic pets who thrive in 78 degrees F temp. Great buy!

## Frequently Bought Together

- Aqueon Aquarium Fish Tank Preset Heater For Up To 40 Gallons, 100 Watts
- PAIZOO Fish Tank Digital Thermometer Accurate LED Display to ±0.9°F Tank Thermometer Aquarium Temperature Measurement Suitable for Fish, Axolotl, Turtle or Aquatic
- AQUANEAT LED Aquarium Light Full Spectrum for 18 Inch to 24 Inch Fish Tank Light Fresh Water

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-01-24*