The Best Aquarium Heater For Your Fishy Friends

A lot of people enjoy fish because you don’t have to “take care of them”. While that may be somewhat true after initial setup, you can’t expect to go to the store, get a fish, and throw it into a jar; especially if that fish is a tropical fish. They are colorful, beautiful, and gorgeous, but they too require certain things to survive. Aquarium heaters are necessary in a good-to-perfect living environment for tropical fishes. Without one, they won’t survive, and no one wants that for their fishy friend. There are many things to consider when purchasing an aquarium heater. First off, is the wattage of the heater. They come in many different watts, ranging from 25 to 300. Depending on what size tank you have, will decide the power of the aquarium heater. The lower the number of watts, the lower the gallons will be. A 50-watt aquarium heater is perfect for up to a 10-gallon aquarium. Second, is whether or not it is fully submersible. This will allow for a better heating opportunity, as well as maintaining the concealment of the aquarium heater. Some people are super picky, and like to build their tanks a certain way. With all that said, we have compiled a list of the best aquarium heaters on the market today for your viewing pleasure. Provide your fish with a healthy living environment!

 

Aquarium HeaterMax Tank SizeWattsPricing and Availability
Tetra HT 50-Watt Aquarium Heater10 gallons50-WattsCheck Amazon Pricing and Availability
Marina Betta Submersible Aquarium Heater1.5 gallons8-WattsCheck Amazon Pricing and Availability
SunGrow Fully Submersible Aquarium Heater15 gallons50-WattsCheck Amazon Pricing and Availability
Aqueon 50-Watt Submersible Aquarium Heater15 gallons50-WattsCheck Amazon Pricing and Availability
Uniclife HT-2050 Submersible Aquarium Heater15 gallons50-WattsCheck Amazon Pricing and Availability
Zacro BH001 300-Watt Aquarium Heater80 gallons300-WattsCheck Amazon Pricing and Availability
Mylivell 100-Watt Submersible Aquarium Heater20 gallons100-WattsCheck Amazon Pricing and Availability
EHEIM Jager 300-Watt Aquarium Heater264 gallons300-WattsCheck Amazon Pricing and Availability
Hydor 25-Watt Submersible Aquarium Heater5 gallons25-WattsCheck Amazon Pricing and Availability
Fluval Marina Mini Aquarium Heater5 gallons25-WattsCheck Amazon Pricing and Availability

 

1. Tetra HT 50-Watt – Best Overall Submersible Aquarium Heater

Tetra HT 50-Watt Aquarium Heater

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The Tetra HT is the best overall aquarium heater on the market today. It is powered by a 50-watt heater. Using a built-in electronic thermostat that is capable of automatically maintaining your water temperature, that is ideal for most tropical fish, how could it not be? This aquarium heater is ideal for aquariums within the 2 to 10 gallon range, with hoods or glass canopies. The Tetra HT aquarium heater is capable of being fully submerged vertically, or horizontally, allowing for maximum customization. The small suction cup will allow for easy concealment behind plants, or rocks.

The Tetra HT is equipped with indicator lights that tell you when the heater is on. When the indicator light on the aquarium heater is at red, it is heating up. When it turns green, it means that it has reached the proper temperature. Overall, this aquarium heater is the most easy-to-use one available to you. Plug, and play; but, make sure you don’t plug it in unless it is already within the aquarium.


 

2. Marina Betta Submersible Aquarium Heater

Marina Betta Submersible Heater for Aquarium

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The Marina Betta aquarium heater is mostly used for smaller tanks, up to a max of 1.5 gallons. Perfect for various betta fish, it creates the ideal temperature allowing them to live comfortably. This aquarium heater is made of durable polymer, that is more resilient, and tougher than that of your actual aquarium. The Marina Betta will automatically reach temperatures, but make sure that you are not plugging the aquarium heater in until you’ve fully placed, and submerged it. Powered by an 8-watt heater, the Marina Betta aquarium heater is perfect for a smaller aquarium.


 

3. SunGrow Fully Submersible Aquarium Heater

SunGrow Fully Submersible Aquarium Heater

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The SunGrow Fully Submersible aquarium heater is the Tetra HT’s biggest competitor. It will automatically maintain temperature for tropical fish, but if you have a special fish, there is an adjustable temperature gauge available to you. Ideal heat is essential in the survival of a tropical fish. The temperature range on this aquarium heater, is 68 degrees, to 93.2 degrees fahrenheit. These are the perfect temperatures for any tropical fish capable of fitting within a 2-15 gallon tank. Make sure you take into account each type of different fish, though. You don’t want to mix in a fish that requires 68 degrees, with a fish that requires 93 degree water. The SunGrow aquarium heater is equipped with an explosion-proof heating rod, as well as an indicator light letting you know when you have reached the proper temperature, or that it is still heating up.


 

4. Aqueon 50-Watt Submersible Aquarium Heater

Aqueon 50 Watt Submersible Aquarium Heater

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While some people don’t mind the set temperatures on aquarium heaters, others do. The Aqueon 50-watt is a great option for someone that wants an adjustable aquarium heater. With the most precise temperature gauging, within 1 degrees, you won’t find a better option. Powered by the 50-watt heater, this aquarium heater is capable of being adjusted from 68, to 88 degrees fahrenheit, allowing for a wide variety of different tropical fish. Equipped with an LED light, it will tell you when the aquarium heater is heating (red), and when it has reached the set temperature (green). The Aqueon 50-watt aquarium heater is made with thermal shatter-resistant quartz glass, that is designed to absorb impact, that makes it extremely durable, and reliable. When considering the Aqueon 50-watt, it is made specifically for 5 to 15 gallon aquariums. It is also programmed to turn itself off when not properly submerged to avoid overheating, and damage.


 

5. Uniclife HT-2050 50-watt Submersible Aquarium Heater

Uniclife HT-2050 50-watt Submersible Aquarium Heater

Buy From Amazon Amazon Prime

The Uniclife HT-2050 aquarium heater is powered by a 50-watt heater that is capable of easily heating 5 to 15 gallon aquariums. It is suitable for most tropical, freshwater, and marine aquariums. Generally used for tropical fish, however, as they need the heated water to survive. This aquarium is equipped with explosion-proof, and made with 1.5mm extra thick quartz glass, that is shatterproof allowing for a safe, and durable aquarium heater. It is fully submersible, with strong suction cup clamps allowing you to place it wherever in the tank, vertically. The Uniclife HT-2050 aquarium heater will maintain temperatures within 61 to 90 degrees Fahrenheit range. Equipped with an indicator light, that will tell you when your tank is being heated, and when your tank is done being heated (red, and green respectively). On a budget, the Uniclife HT-2050 aquarium heater is one of the best on the market.


 

6. Zacro BH001 300-Watt – Best Large Tank Submersible Aquarium Heater

Zacro BH001 300 Watt Submersible Aquarium Heater

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With bigger aquariums, the need of a more powerful aquarium heater is important. The Zacro BH001 is powered by 300-watt heater that is capable of heating an aquarium of 80 gallons. While it may be more expensive, you cannot put a price on the survival of your tropical fish. You owe it to them to have a good aquarium heater for a suitable living environment. The Zacro BH001 aquarium heater is waterproof, and is equipped with a double sealed material; constructed with plastic, and a black protective container that will prevent scalding, and punching. Applicable to both fresh, and sea water, this aquarium heater is extremely easy to use. It has a visible temperature setting, capable of adjustment between 65 to 93 degrees fahrenheit. This model is available with a temperature allowing you to avoid overheating, or freezing. For a bigger tank, the Zacro BH001 aquarium heater is the best option on the market.


 

7. Mylivell 100-Watt Submersible Aquarium Heater

Mylivell 100-Watt Submersible Aquarium Heater

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The Mylivell 100-watt aquarium heater is a great option, on a budget, for a more powerful option that larger aquariums require. We recommend a 20 gallon aquarium for this particular heater. Constructed with a high quality quartz glass, as many of it’s competitors are, it allows for safe operation, and durability. It has adjustable temperature gauge that ranges between 65 degrees fahrenheit, to 93 degrees fahrenheit with an easy-to-read display. The Mylivell aquarium heater is fully submersible, allowing for the perfect, and hidden setup. The polarized plug will ensure that there will be no electrical shock, so that your fishies can maintain a perfect living environment.


 

8. EHEIM Jager 300-Watt Aquarium Thermostat Heater

EHEIM Jager 300-Watt Aquarium Thermostat Heater

Buy From Amazon Amazon Prime

EHEIM Jager hits the market hard with this powerful 300-watt aquarium heater. When using this heater, keep in mind it is capable of heating and aquarium up to 159-264 gallons. It is fully submersible allowing for an easy, and hidden setup. It will automatically turn off when the water level dips too low to ensure that you aren’t overheating, or freezing the water. The TruTemp dial on this aquarium heater will calibrate the heater for precise temperature regulation. It is constructed out of a shock-resistant, and shatter proof glass for fresh, or marine water. If you are looking for a heater, but don’t need this much power, we recommend taking a look at the Tetra HT 50-watt aquarium heater.


 

9. Hydor 25-Watt Submersible Glass Aquarium Heater

Hydor Submersible Glass Aquarium Heater

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A very high-quality aquarium heater, and it’s price reflects that. The Hydor 25-watt aquarium heater is made for smaller aquariums with tropical fish that require appropriate heat to survive. The high-resistance, shatter, and shock proof heater will ensure the safety of your fishies. One of the better features of this aquarium heater, is that it is capable of being fully submerged at both a vertical, or horizontal position. This is extremely important in smaller aquariums, because you already don’t have too much room to work with. The Hydor 25-watt will turn on, and off, but will maintain the temperature you have set. For a small aquarium, we highly recommend the Hydor 25-watt aquarium heater.


 

10. Fluval Marina Mini Submersible Aquarium Heater

Fluval Marina Mini Submersible Aquarium Heater

Buy From Amazon Amazon Prime

Fluval brings it’s Marina, fully-submersible aquarium heater to the market in style. Powered by a 25-watt, or 50-watt option heater, your fishies will live a happy life, in a perfect living environment. We recommend using this on fresh, or saltwater aquariums up to 5.5 US gallons. It comes equipped with an easy-to-access temperature dial, allowing for that perfect temperature. The aquarium offers a pilot light that will let you know when your aquarium is heating up, or has been already heated. The Fluval Marina has a bumper guard, for the fishes safety. The aquarium heater is supposed to help the fish, not hurt them! Constructed with durable, high-impact glass, it will withstand anything thrown at it.

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