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Best Aquarium Heater for 2019 ( Reviews & Buyer’s Guide)

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Making the natural environment in freshwater or saltwater’s fish tanks, need a high-quality aquarium heater. Are you looking for the best aquarium heaters? If yes is selected, you are in the right place to get appropriate information about heaters. Fish can’t regulate their own body temperature and they rely on the water.

Fishes are living in to maintain their body temperature, sometimes they can lose their body temperature that’s why they need extra temperature for their better lives. The best aquarium heaters come with amazing features that can keep water at the exact temperature. If you are planning to buy the right aquarium heater then this article will help you with details. Let’s start reading below.    

10 Best Aquarium Heaters Review & Buyer’s Guide

After countless hours researching top-rated heater brands, we have strained 10 best aquarium heaters these are fish-friendly and replicate the natural environment. 

1. Tetra HT Submersible Aquarium Heater  

Tetra HT Submersible Aquarium Heater

Specification: 

  • Brand: Tetra
  • Product Dimensions: 5.2 x 1.6 x 3.5 inches 
  • Shipping Weight: 8.8 ounces
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Tetra is the American’s most popular brand in the fish care world. This versatile aquarium heater is the most responsible to heat the water properly. Tetra HT heater comes with several wattages. Tetra’s heater has the ability of the temperature up to 78°F. It is suitable for all kinds of aquariums in the tank.

The HT10 is considered as the premium quality heater and perfect in the fish tank up to 10 gallons. This heater can install properly and make sufficient heat for the fish. With the heater, you can ensure natural temperature to your fish. This heater has indicator lights for heating direction. 

Key Features

  • Easy to install
  • Built-in, automatic thermostat (up to 78°F)
  • Suitable for tanks up to 30 gallons
  • Can place vertically or horizontally
  • User-friendly options

2. Eheim Jager Aquarium Thermostat Heater

Eheim Jager best Aquarium Thermostat Heater

Specification: 

  • Brand: Eheim
  • Product Dimensions: 1.4 x 19.9 inches 
  • Shipping Weight: 1 pound 
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Eheim Jager heater is an effective heater that comes in a range of sizes suitable to heat tanks up to 220 gallons. It is designed with a shock-resistant glass jacket. This versatile design heater not only develops the efficiency of a tank’s heat distribution process but it can also resist any kind of aquatic environment. 

It is a completely submersible heater, including Thermo safety control. This multifunctional heater has the capability to adjust the temperature. It can master the temperature between 64 and 95 degrees Fahrenheit.

Key Features

  • On/Off indicator lights
  • Auto turn-off al law water
  • Precise temp control
  • 170 cm power cord 
  • Adjustable TruTemp dial 

3. Cobalt Aquatics Flat Neo-Therm Heater 

Cobalt Aquatics is a fully submersible heater that comes with different watts. It is a very sleek and slim design heater that fits in well stylish homes. This heater can adjust the temperature from 66°F to 96°F and tank temp within +0.5°F. Cobalt Aquatics includes an LED display that effective for both the temperature of the heater and tank.

For ultimate safety, it has a thermal protection circuit that shuts the heater down before overheating. Shatterproof outer-casing is used to make this Aquatics. Cobalt Aquatics is a one-touch control system heater and user-friendly.

Key Features

  • Adjustable temperature range
  • Easy to set up
  • LED display and flat design
  • Completely submersible 
  • Latest technology

4. Hydor Submersible Glass Aquarium Heater

Hydor Submersible Glass Aquarium Heater

Specification: 

  • Brand: Fluval
  • Product Dimensions: 2 x 1 x 12.5 inches 
  • Shipping Weight: 1.1 pounds
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The Hydor Submersible Glass Aquarium Heater series is the best electronic heater that has an LCD temperature display that can be set to either Celsius or Fahrenheit. This heater is entirely submersible, including an alarm that changes the color of the LED to indicate. It is an ideal heater for providing exact heat in the fish tank. 

The Hydor Submersible Glass Aquarium Heater comes in a range of wattages and suitable for a wide range of tank sizes. It also has dual temperature sensors that ensure real-time water temperature.  

Key Features

  • Temperature LCD display
  • Show both Celsius or Fahrenheit
  • Easy to set up
  • Two electronic thermostats
  • Stylish design

5. Marineland Precision Heater

 Marineland Precision Heater

Specification: 

  • Brand: Marineland
  • Product Dimensions: 3.9 x 1.6 x 13.4 inches 
  • Shipping Weight: 9.6 ounces
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Marineland is a fantastic heater that comes in a range of wattages and suitable for a wide range of tank sizes. You can easily adjust the heater temperature. This versatile heater provides incredible natural weather in the fish tank. Marineland Precision Heater is the most responsive for the actual temperature range, including 3 window positions.

It also includes a thermal switch to turn off. The heating element of this heater has the ability to transfer sufficient heat in the fish container. It ensures the natural environment for aquariums.

Key Features

  • Fully submersible
  • Perfect heat transfer
  • Adjustable temperature
  • A pre-set temperature 
  • Fast-heat feature with safety shut-off

6. Fluval M Submersible Heater

 Fluval M Submersible Heater

Specification: 

  • Brand: Fluval
  • Product Dimensions: 1.2 x 1.2 x 13 inches
  • Shipping Weight: 6.4 ounces
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The Fluval M series is another most popular electronic heater that has surrounded by shock resistant borosilicate glass. This versatile heater has an LCD that helps to see the condition of the temperature. It can display temperature Celsius or Fahrenheit. This heater is entirely submersible, including the color of the LED to indicate heat. Fluval M Submersible Heater comes with essential features that help to generate wonderful weather in the tank.

It is a perfect fish guard that has capabilities to protect fish in natural weather. The Fluval M series is a sleek looking heater with smooth adjustable in temperature.

Key Features

  • Easy to adjust the temperature
  • Visible glass
  • Aquariums up to 65 gallons (200 watts)
  • Temperature range 66-86 °F
  • Completely submersible
  • Reflective technology

7. Aqueon Pro Heater

Aqueon is a well-maintained pro heater built with the non-corrosive shell. To control the temperature, Aqueon includes an adjustable setting. You can set up easily the temperature in the tank for your aquariums. Keet the standard heat between 68 and 88-degree Fahrenheit.  Aqueon Pro Heater is completely submersible and has an auto shut-off when heat over. 

Aqueon Pro is my best choice heater, still, I am using this one. Features include an LED light that helps to know the heating condition by changing color. It also can change color, for instance, red color when heating the water and green color means proper heat the water.

Key Features

  • Auto shut-off 
  • Adjustable temperature
  • High-quality, simple 
  • Fully submersible
  • LED lights for the heating process

8. FREESEA Aquarium Fish Tank Submersible Heater 

FREESEA Aquarium Fish Tank Submersible Heater

Specification: 

  • Brand: FREESEA
  • Product Dimensions: 2.7 x 1.8 x 4.7 inches
  • Shipping Weight: 14.4 ounces
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Freesea is a fully submersible aquarium heater designed with an automatic constant temperature function. In fact, you don’t have to worry about its quality. This heater can maintain the optimal temperature automatically shut-off when water temperature high. The temperature range of this heater is 59 to 94°F.

It also has a temperature show display and you can change the settings manually. Freesia is the best heater for those people who want to make the best aquariums.

Key Features

  • Wide temperature range
  • Adjustable temperature
  • Fully submersible
  • Manual setting 
  • Display (LED) showing degrees

9. DaToo Aquarium Heater

DaToo Aquarium Heater

Specification: 

  • Brand: DaToo
  • Product Dimensions: 6.7 Inch
  • Shipping Weight: 6.4 ounces 
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DaToo Aquarium heater is best for our beloved fish’s life in a comfortable environment. DaToo heater is a matter of concern and creates a warm as well as a comfortable living environment for your lovely fishes. It is manufactured with shatterproof and wear-resistant microcrystalline glass. 

This effective heater can be used in fresh and saltwater. Outshape of this heater is made with high-quality BPA-free plastic. This heater is developed with an automatic process (on-off). 

Key Features

  • Offers a comfortable environment for fish
  • Perfect 2 to 10 gallons tank
  • Ceramics glass
  • Adjustable temperature
  • Durable enough

10. Aqueon Submersible Aquarium Heater

Aqueon Submersible Aquarium Heater

Specification: 

  • Brand:  Aqueon
  • Product Dimensions: 3.7 x 15 x 1.5 inches
  • Shipping Weight: 9.6 ounces
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Aqueon submersible Aquarium Heater is another well-designed heater on our list. It is built with shatter-resistant, including amazing features. Aqueon submersible heater is a user-friendly heater, as you can control the heat easily. It has a heat adjustable setting that helps to keep the heat between 68 and 88 degrees Fahrenheit.   

Aqueon Heater is completely submersible and automatic safety. It can automatically shut-off when water heat over. This heater also has an LED light that turns on when water is being heated. It can be used in freshwater and saltwater fish tank.

Key Features

  • Helpful for cold-blooded animals
  • Adjustable temperature
  • Auto shut-off
  • 6-foot power cord 
  • Easy to set up

Best Aquarium Heaters – Buyer’s Guide

The water temperature in the tank is of the utmost importance for your fish. If you buy a heater with poor quality, fish can lose their lives in the water. So you select the best aquarium heaters for aquariums wholesome. A high-quality heater is the most responsible to reduce stress in the fish tank. It can make the natural environment amazingly. We have realized some important points must need to consider before buying the heater. 

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Aquarium Heater Size

Manufacturers of the aquarium heater make different sizes of heaters, including heat capacity. Before buying a heater you must think about what size of the heater perfect for your fish’s tank. The best aquarium heater has the ability to deliver sufficient heat to your fish tank so that your fish have natural feelings. Heater’s size should be perfect for the right temperature in the fish tank.  

Design Of Aquarium Heater

The design is important before investing in an Aquarium Heater. The Aquarium Heater is specially designed to maintain environmental stability inside the fish tank. It has developed with the core heating element that is usually enveloped in either glass or ceramic. These types of heaters contain inside a watertight plastic, glass, or steel housing fully-immersed in water. Aquarium Heaters are also equipped with an adjustable thermostat that responsible for turning the heating element on or off. 

Aquarium Heater Filter

Including filter, heater minimizes the amount of extra equipment needed inside the aquarium. You must check the filter before finally choosing the heater. Generally, in the tank water is heated as it passes through the filter. Select the best Aquarium heaters for your small to extremely large tanks and can place anywhere inside the tank.   

 Aquarium Heater Types

The heater type is very important when choosing the best one. In this age of technology, a lot of manufactures companies are producing heaters in different sizes. Determined the right type of heater that works good and depends on the types of substrate and objects you plan to place inside it. To be the truth, best-quality aquarium Heaters are the most responsive to deliver exact heat for fish. So make sure the right type of heaters before paying money.

Ease Of Maintenance

Before buying an Aquarium heater, it’s utmost important to know the maintenance process. It should be capable of maintaining a healthy environment for your aquarium fish. If you buy the well-manufactured best aquarium heater that is user-friendly, as you can maintain very easily. Aquarium fish life within a controlled environment and it allows them to flourish for an extended period of time. 

Temperature Control

Well-designed heater assists to maintain a predetermined temperature for the aquarium in the event of a power outage. Consider the adjustable temperature heater that will help to heat water automatically. To keep the nature of your tank, you must buy the heater that installs vertically or horizontally and has the capability to work in both freshwater and saltwater.   

Final Verdict:

Reading the list above, perhaps, you have figured out a completely ideal concept about the best aquarium heaters. Now, you are capable to pick out the best one confidently. In this guide, we have collected all top-rated heaters, including real information. With the use of the Aqueon Pro Heater, I maintain fish tanks with massive confidence. Consider your demand before buying the right one.

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Corey J. Ye is a technology/travel writer/photographer based in Los Angeles. For most of the year, he is a digital nomad who works while traveling around the world. Before going out to nature, he was editor in chief of the animal magazine and former technical editor of the Home Animal Magazine.

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