If you are going to maintain an aquarium, then you need the right devices for that. One of the most important aspects you need to consider in maintaining an aquarium is the temperature. The best aquarium heater will consistently keep the water at the right temperature while protecting the fish from burning.
Choosing the right aquarium heater is very important as it guarantees a healthy aquarium where life can flourish. However, there are quite a number of models in the market that finding the best can be a real hassle. In this article, we are going to look at some of the best aquarium heater models you can find in the market to make it easier for you in finding the model that suits you.
Best Aquarium Heater FAQs
1. What Is an Aquarium Heater?
This is a thermal device used in fish keeping to warm water temperatures in aquariums or fish tanks.
2. What Does an Aquarium Heater Do?
An aquarium heater basically raises and stabilizes the water temperatures of the aquarium to a range where fish can survive (around 22 to 30 degrees Celsius).
3. How Does an Aquarium Heater Work?
In simple terms, an aquarium heater converts electricity to heat. As water absorbs heat the heater heats the surrounding water. It automatically turns off when the temperature of the setting is reached. The water must have good circulation for the heater to work properly.
4. Where Can You Buy It?
Online stores like Amazon have dealers and sellers of the best aquarium heater models you can find in the market.
5. How Long Does It Take to Heat an Aquarium?
It takes at most 24 hours to heat your aquarium to stable temperatures. You can confirm the temperatures by checking the reading on the thermometer. Every time the temperature gets too low the heater sends an alarm by showing a light.
How We Reviewed
We carried out in-depth research to find out how different aquarium heaters work. We did this by analyzing their distinctive features in order to pick the best there are in the market. Other aspects we considered include pros & cons, and where to buy. On some occasions, we had to test these heaters so as to obtain accurate, reliable and unbiased results that could help you make the best buying decision.
What We Reviewed
- Our digital microprocessor boasts amazing =/- 0.5 F accuracy
- Remote temperature probe
- Large constant LED display of the current temperature
What makes this the best aquarium heater is its controller's internal memory. It makes it capable of saving temperature settings even during a power failure. This is unlike the thermostats in regular heaters which can result in inaccurate temperatures readings or recurrent on and offs. Besides that, it boasts a Tru Temp digital controller which has push-button controls and an LED display.
The titanium heating element of this aquarium heater works only as a heating element since it has no thermostat. It is plugged into the Tru Temp unit and turns on and off automatically.
- Aquatop Aquarium Glass Submersible Heater, 300-Watt with Liquid Crystal Vertical Aquarium Thermometer
- Tank Capacity: Up to 75 gallons
- Voltage/Freq: 110-120V/60Hz
- Power: 300W - Temperature Range: 68-93F
- Liquid Crystal Vertical Aquarium Thermometer - Know your aquarium's temperature at a glance Easy-to-read and accurate thermometer mounts on outside of your aquarium
Most people have rated this the best aquarium heater as it is very powerful. It uses a liquid crystal vertical aquarium thermometer. It has 300W of power which gives a 68-93F temperature range. The heater works with a tank capacity of up to 75 gallons at a voltage of 110-120V/60Hz.
The heater is made with high-quality insulated glass and has double insulation. It comes with suction cups for easy setup.
- Fully submersible
- Thermo safey control protects against running dry
- Will automatically turn off when water level dips too low
- TruTemp dial recalibrates the heater for precise temperature regulation
- Made of shock resistant and shatter proof glass for fresh or marine water
This heater is fully submersible and is found in different watts and lengths. Its TruTemp dial is simply set to allow you to easily set your desired temperature. Even better, it has an indicator light makes it easier to monitor the operation of the heater. Safety features like an automatic shut off and shatter-proof and shock resistant glass make it the best aquarium heater.
- Adjustable heat setting 68 to 88°F, Electronic Thermostat accurate to +/- 1°
- Shatterproof and nearly indestructible
- Fully submersible; Auto Shut-Off when over-heats, resets when it cools down
- LED light is always on: red when heating, green when not heating
- Limited Lifetime warranty
This has been rated the best fully submersible aquarium heater in the market. Available in different watts, this heater model has adjustable heat settings and a highly accurate electronic thermostat. It is made of thermoplastic making it shatterproof and indestructible. It has a large control knob and the fact it is easy to access makes it one of the best aquarium heater models.
- Dual temperature sensors provide accurate and real time water temperatures
- LCD temperature display available in both Fahrenheit and Celsius; Range of 68 to 93 degrees Fahrenheit
- Fast heat technology built with a safety shut-off; Integrated fish guard to protect fish and invertebrates
- Equipped with a slim profile mounting bracket; Colored display alert system
- Suitable for aquariums up to 100 gallons; 300 watts; 5 year warranty
This can be used in a variety of tank sizes since it comes in different watts. It has dual temperature sensors that guarantee real-time water temperatures. It allows temperature settings between 68 and 93 degrees Fahrenheit in 0.5 degrees increments. What makes it the best aquarium heater is its slim mounting bracket that enables you to mount the heater at different angles.
This is one of the fastest performing and powerful aquarium heaters you can come across. It has a temperature range of 70 to 92 degrees Fahrenheit and can handle up to 120 gallons. Unlike other models, its temperature control is set on the external which is most convenient. The heater provides an accurate temperature setting and maintains it within 2 degrees.
Other features that make it feature among the best aquarium heater models include an LED heating indicator, titanium tube, a sleek analog controller, and a heater guard.
- Super-flat design. Fully submersible, modern design for energy efficient Aquarium and terrarium heating. Includes reversible holster/bracket, which allows heater to face inward or outward. See the product images to determine the best neo-therm size for your tank.
- Accurate, one-touch system. Simply set temperature between 66-96°f with one touch and the neo-therm electronic thermostat will maintain Tank temperature within +0.5°F. Led displays both set temp and actual temp, simultaneously.
- Ultimate safety and reliability. Integrated thermal protection circuitry prevents heater from overheating. If you forget to turn it off, the neo-therm will automatically shut it down.
- Virtually indestructible. Unlike cheap, glass heaters, the neo-therm is a resin/thermoplastic heater with a shatterproof outer-casing. Made in Poland and includes a 3-year warranty.
- Manufacturer You can trust. Most manufacturers rate their heaters on the ability to raise an aquarium 2-3°f above ambient temperatures. This is unreliable and misleading, as the average home fluctuates 2-3°f or more throughout the day. Cobalt rates The neo-therm on the ability to raise a tank 11°f above ambient temperatures, so you will never have to worry about overworking the neo-therm or it keeping up!
This heater allows you to set a temperature range of 66 to 96 degree Fahrenheit. It maintains the temperature within 0.5 degrees. Its super flat design and a one-touch control system make it the best aquarium heater. It features integrated thermal protection that automatically shuts off when the heater overheats.
The heater has an internal thermometer and external temperature control that makes it easy to adjust the temperature between 68 and 93 degrees Fahrenheit. It features an auto-shutoff that will enable the heater to shut down during low water level and to prevent overheating. It is easy to read the temperature thanks to the digital LED display.
The heater comes with multiple protection features like a heater guard, a glass-made shatterproof, and 2 suction cups and these features make it one of the best aquarium heater models.
- Suitable for marine and tropical aquariums
- Easy to use
- High precision electronic temperature control
- For external use
- 5/8 inch hose
This is designed to work along with a canister filter. It is the best aquarium heater for both tropical and marine aquariums. Though regular aquariums are meant to be submerged in the aquarium, this was made to be mounted outside. The heater uses a polymer PTC heating element which prevents overheating at any given point.
Its design gives it constant exposure to water movement. It is easy to set and adjust the heater as it is setting the temperature. The LED light indicator helps you monitor how the heater operates.
An electronic thermostat is what makes this the best aquarium heater. It maintains the water temperature at 78 degrees Fahrenheit with no need for adjustment, thus ideal for tropical fish. It is ideal for 2 to 10-gallon tanks and it is fully submersible. Even better, it has a conveniently small footprint that you can conceal it behind plants or décor.
When it comes to choosing an aquarium heater, the safety of your fish should be the number one priority. The best aquarium heater keeps your fish safe and in the right, stable temperature conditions. Features to look out for when choosing an aquarium heater include watts, accessible controls, temperature readability, safety features, and adjustable temperature options.
From the information we gathered from our research, the Fluval E 100-Watt Electric Heater is our top pick. It comes with multiple safety features at a very affordable price. It is also the best option for both beginners and experts since it is easy to use and it comes in various watts for different aquariums.