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Best Aquarium Heaters : Reviews, Buyer Guide, Pricing and FAQ

πŸ₯‡ Rank #1
Fluval
86.2 %
βœ”οΈWe Highly Recommend This Product!
πŸ₯‡ Rank #2
Eheim
84.4 %
βœ”οΈWe Recommend This Product!
πŸ₯‡ Rank #3
Orlushy
82.4 %
βœ”οΈWe Recommend This Product!
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Aquarium Heaters : Editor's Overview

Last Updated on Tuesday, August 3rd, 2021

Giving pet fish a comfortable home is the thing everybody should be doing. This is difficult at times, especially with fish species that need warm water. However, with the right aquarium heater, the trouble is over and done with as you can always monitor the temperature of the fish habitat. We have reviewed some of the best aquarium heaters in the market today to give you a head start in your search for a perfect aquarium heater.

How we Reviewed and Ranked Aquarium Heaters

To create our buying guide for the best Aquarium Heaters of August 2021, we analyzed 2,190 user reviews across 10 products with an average user rating of 3.6 stars. Our scoring algorithms remove fake reviews, consider expert reviews on other websites and monitor search engine interest to determine our confidence in your satisfaction with your purchase.
8
Products Reviewed
21,320
Reviews Analyzed
4.1 ⭐
Average User Rating
$ 120.00
Average Price
74.3%
Average ProductAdvisor Score

Ranking of the 10 Best Aquarium Heaters

The Best Aquarium Heaters of August 2021


Rank #1


βœ”οΈWe Highly Recommend This Product!
1,952
Reviews Analyzed
4.4 ⭐
Average User Rating
$49.30
Latest Price
86.2%
Our Score

Fluval M submersible aquarium heater is made from superior quality materials and an advanced construction mechanism. The heating element is covered by shock resistant borosilicate glass that ensures you can operate it safely while it works. It is very straightforward to install and has a slim profile that is easy to replace if the inevitable happens.

Key Features

  • Uses reflective technology
  • Made of shock-resistant borosilicate glass
  • Slim profile
  • Easy to install
Rank #2


βœ”οΈWe Recommend This Product!
4,025
Reviews Analyzed
4.1 ⭐
Average User Rating
$24.94
Latest Price
84.4%
Our Score

The Eihem Jager aquarium heaters are high-quality and fully submersible aquarium heating devices. With the automatic shutoff feature, the heater is protected from breaking when the tank level dips too low. This feature also protects your fish and other aquatic life in the aquarium by preventing overheating that could kill them.

Key Features

  • Fully submersible
  • Auto shutoff enabled
  • Made of shatterproof glass
  • On/off indicator for easy monitoring
Rank #3


βœ”οΈWe Recommend This Product!
2,947
Reviews Analyzed
4.1 ⭐
Average User Rating
$16.99
Latest Price
82.4%
Our Score

The Orlushy mini aquarium heater is designed to spare the little space in small aquarium tanks without foregoing quality and performance. Within the compact oval shape, an efficient thermometer tracks the water's temperature while a thermostat maintains a standard temperature of your choosing. However, the temperature control system could have been better.

Key Features

  • External temperature controller
  • LED temperature display
  • Suitable for both fresh and marine water
  • Available for different tank sizes
Rank #4


βœ”οΈWe Recommend This Product!
4,653
Reviews Analyzed
3.9 ⭐
Average User Rating
$15.99
Latest Price
81.8%
Our Score

The 25-watt FREESEA aquarium heater is about 6.8 inches long and works with 120 V wall outlet to warm your aquarium to the required temperature. Further, this aquarium heating rod has a generous temperature range of 63 degrees to 95 degrees, which is well above what most pet fish and turtles would require. The FREESEA mini aquarium heater is fully submersible in aquarium water.

Key Features

  • Suitable for 1 to 5 gallons aquarium
  • Intelligent temperature control
  • Slim design
  • Automatic shutoff
Rank #5


βœ”οΈWe Recommend This Product!
1,281
Reviews Analyzed
4.1 ⭐
Average User Rating
$22.99
Latest Price
80.0%
Our Score

The ViaAqua 300 watts aquarium heater is a rod-shaped device designed to maintain a constant temperature for water in a medium-sized tank up to 80 gallons. The heater is made with a shatter-resistant quartz glass that can take the pressure and moderately high temperature without breaking or tearing apart. This makes the heater safe for the aquatic life in the aquarium and saves you the money you would need for replacements.

Key Features

  • High-quality quartz glass
  • Fully submersible
  • Easy to read temperature scale
  • Works for fresh and salty water
Rank #6


βœ”οΈWe Recommend This Product!
305
Reviews Analyzed
4.3 ⭐
Average User Rating
$15.99
Latest Price
79.4%
Our Score

This aquarium heater by IOAOI has a secure double tube structure with an engineering-grade plastic enclosing a stainless steel tube inside. The device is shatterproof and does not have any glass materials on it. Further, this heater can be used with both saline and fresh water and fully immersed in the aquarium.

Key Features

  • Adjustable temperature
  • Works for both fresh and salty water
  • 100 W
  • Horizontal/vertical orientation
Rank #7


βœ”οΈWe Recommend This Product!
4,641
Reviews Analyzed
4.0 ⭐
Average User Rating
$18.99
Latest Price
77.8%
Our Score

The FREESEA aquarium heater is one of the most loved portable heaters by fish lovers. The heater features an automatic constant temperature feature where you can set a non-varying temperature for your aquarium. The heater is fully submersible and should always be under water when turned on.

Key Features

  • Compact-sized battery and electric-powered.
  • Made from ABS non-toxic plastic materials.
  • Includes multiple speed levels.
  • Features a 14oz tank for more solution storage.
  • Cyclic adjust temperature
  • Has an automatic constant temperature feature
  • Fully submersible
  • Suitable for 1 to 10 gallon aquarium tanks
Rank #8


βœ”οΈWe Recommend This Product!
1,516
Reviews Analyzed
3.5 ⭐
Average User Rating
$18.99
Latest Price
75.0%
Our Score

The FSTSTC submersible aquarium heater has been upgraded to bring better product life, high accuracy, and reliability. This aquarium heater has an adjustable temperature range of 68 degrees to 94 degrees. Besides the submersible aquarium heater, you will also be provided with a portable thermometer to ensure you can always clarify the correctness of the built-in thermometer.

Key Features

  • Made of durable quartz glass
  • Has automatic shutoff
  • Adjustable temperature control
  • Comes with a heater protector

Aquarium Heaters : Buying Guide

These are the main factors to examine before purchasing your aquarium heaters.

⚑ Wattage

The wattage of an aquarium heater is directly related to the volume of water it can heat to a fish-friendly temperature. Of all the heaters we have reviewed, 25 watts is the lowest while 300 watts is the highest. A 25 watts aquarium heater is suitable for tanks with a capacity of up to 5 gallons, while 300-watt heaters can be used with up to 85-gallon aquariums.

🌑️ Adjustable Temperature

Can you change the temperature, or is it fixed? This is important since different fish species have different temperature requirements. Also, you may need to change the temperature for other reasons. All the aquarium heaters we reviewed have an adjustable temperature range.

βš™οΈ Safety Features

Safety for you and your pet fish remains a determining factor for what aquarium heater you buy. Will the device overheat and kill the fish? Is there a risk of electric shock when operating the aquarium heater? Will the heater explode or shatter while heating your aquarium? Consider the answer to these and other safety-related questions, and you can surely choose a perfect aquarium heater. Almost all of the heaters we have reviewed have an auto-shutoff feature that protects the fish.

🚫 Usability

Usability relates to how you interact with the aquarium heater. For instance, how do you adjust the temperature of the heater when it is submerged in water? Some of the aquarium heaters we have reviewed have a temperature adjusting dial while others have a cycle-through push button. Again, consider the temperature display and whether it remains readable throughout the time.

Frequently Asked Questions


There is no reason why you should not use an extension cable; the aquarium heater is just like other electrical appliances. You may want to consider a surge protected extension cord for the safety of your fish.

An aquarium heater with the auto shut off feature may turn on/off frequently during the first use only when the temperature is stabilizing to the user setting. If this happens when the water temperature is way too far from the user setting, it may indicate a failing heater. Contact your heater seller for help.

Even though this is dependent on the manufacturer, most of the heaters should be fully submerged in water to work. Read the user manual that comes with your heater or contact the seller for assistance.

There is no problem with an aquarium heater in a plastic fish tank as long as the heating element does not come into contact with the tank.

The average price of a aquarium heaters's is $23.02.They range in price from $49.30 to $18.99

The best aquarium heaters's for the money is the Fluval M 200 Watts Submersible Heater. It costs $49.30 on Amazon.com

The cheapest aquarium heaters's is the IOAOI Aquarium Heater for Fish Tank. It costs $15.99 on Amazon.com

Compare Aquarium Heaters

Our editors selected the following Aquarium Heaters for consideration in our list.
Brand Product Score Price Reviews Rating Weight Dimensions
Fluval Fluval M 200 Watts Submersible Heater 86.2% $49.30 1952 4.4⭐ 0.28 lbs 4.80 W x 1.70 L x 16.50 H
Eheim EHEIM Jager Aquarium Thermostat Heater 84.4% $24.94 4025 4.1⭐ 0.82 lbs 1.42 W x 0.00 L x 19.92 H
Orlushy Orlushy Mini Aquarium Heater 82.4% $16.99 2947 4.1⭐ 0.00 lbs 2.75 W x 4.00 L x 1.60 H
FREESEA FREESEA Aquarium Betta Fish Tank Heater 81.8% $15.99 4653 3.9⭐ 0.00 lbs 3.00 W x 7.90 L x 2.00 H
ViaAqua ViaAqua 300 Watt Quartz Glass Submersible Heater 80.0% $22.99 1281 4.1⭐ 0.68 lbs 1.13 W x 1.13 L x 14.80 H
IOAOI IOAOI Aquarium Heater for Fish Tank 79.4% $15.99 305 4.3⭐ 0.57 lbs 0.00 W x 0.00 L x 0.00 H
FREESEA FREESEA 50W Mini Aquarium Heater 77.8% $18.99 4641 4.0⭐ 0.00 lbs 1.50 W x 2.50 L x 3.50 H
FTSTC FTSTC Submersible Aquarium Heater 75.0% $18.99 1516 3.5⭐ 0.00 lbs 0.00 W x 0.00 L x 0.00 H
Brand Product Score Price Reviews Rating Weight Dimensions

Best Aquarium Heaters Brands

The following brands make the best Aquarium Heaters in the market.

Sources

Thank you to these resources for helping us compile this page
https://modestfish.com/best-aquarium-heaters/
https://modestfish.com/best-aquarium-heaters/
https://www.amazon.in/Aquarium-Heaters/b?ie=UTF8&node=4771349031
Results 1 - 24 of 135 β€” BURAQ Aquarium Fully Automatic on Off Fish Tank Heater with Temperature Control knob for Marine Freshwater Β· Fully Submersible ...
https://www.petsami.com/best-aquarium-heaters/
Our Top 10 Picks for the Best Aquarium Heaters. #6 Fluval E Electronic Heater. #5 Hydor In-Line External Aquarium Heater. #4 Eheim Jager Aquarium Thermostat Heater. #3 Tetra HT Submersible Aquarium Heater with Electronic Thermostat. #2 Cobalt Aquatics Neo-Therm Aquarium Heater. #1 Aqueon Pro Adjustable Aquarium Heater.
https://www.fishkeepingworld.com/best-aquarium-heater/
Oct 5, 2018 β€” Tetra HT Submersible Aquarium Heater Β· Aqueon Pro Adjustable Heater Β· Fluval E Electronic Heater Β· Eheim Jager Aquarium Thermostat Heater.β€ŽTypes of Aquarium Heaters Β· β€ŽThe Best Aquarium ... Β· β€ŽHow to Choose the Best ...
https://fishtankadvisor.com/best-aquarium-heater-reviews/
3 days ago β€” Best & Most Efficient Aquarium Heaters Reviews. So now let's take a closer look at some of the most popular aquarium heaters you can buy today ...β€ŽWhy Do You Need a Heater? Β· β€ŽImmersible heater Β· β€ŽHydor In-Line External ...
https://www.thesprucepets.com/top-submersible-aquarium-heaters-2925818
Dec 12, 2019 β€” Best Overall: Aqueon Adjustable Pro Aquarium Heater at Amazon. Best Budget: Tetra HT Submersible Aquarium Heater at Amazon. Best for Betta Fish: hygger Submersible Aquarium Heater at Amazon. Best for Turtles: Tetra Fauna Aquatic Reptile Heater at Amazon. Best Electronic: Best Titanium: Best for Plants: Best In-Line ...
https://aquariumadviser.com/best-aquarium-heaters/
Best Aquarium Heater Reviews. 1. Orlushy Submersible Aquarium Heater. If you are looking for a submersible ...
https://www.reviews.in/best-aquarium-heater-guide.html
9 Best Aquarium Heaters. Nothing is more pleasing than having a home aquarium It is a small representation of nature's beauty. However, keeping an aquarium ...
https://petlifetoday.com/best-aquarium-heaters/
Jun 9, 2020 β€” Our Top Pick: Hygger Titanium Tube Submersible Pinpoint Aquarium Heater. One of the main concerns about submersible aquarium heaters is ...
https://www.flipkart.com/pet-supplies/fish-aquatic/aquarium-accessories/aquarium-heaters/pr?sid=p3t%2Cljf%2Cnct%2C4ao
Aquarium Heaters. (Showing 1 – 40 products of 129 products). Sort By. Popularity. Price -- Low to High. Price -- High to Low. RS ELECTRICAL RS308-C ...
https://www.authorityaquarium.com/best-aquarium-heaters/
https://aquariumadviser.com/best-aquarium-heaters/
Best Aquarium Heater Reviews 1. Orlushy Submersible Aquarium Heater. If you are looking for a submersible aquarium heater that can heat up a space of... 2. Hygger Submersible Aquarium Heater. The Hygger Submersible Aquarium Heater is a small, lightweight option for people... 3. …
https://aquariumlabs.com/best-aquarium-heater-reviews/
Best Rated: Hygger Saltwater Tank Titanium Tube Submersible Pinpoint Aquarium Heater. Check Latest Price. Most aquarium heaters use glass or plastic tubes to keep them waterproof. These cases are sensitive to heat differentials and may sometimes crack or shatter the glass, resulting in a tank of electrocuted fish.
https://www.aquapetpro.com/best-aquarium-heater/
https://fishcareguide.com/6-best-aquarium-heaters/
https://bestreviews.com/best-aquarium-heaters
Types of aquarium heaters. Hang-on-tank aquarium heaters. Also known as "hang-on" heaters, these units hang off the back of the tank, partially submerged in the water. Pros: Submersible aquarium heaters. Substrate aquarium heaters. Filter aquarium heaters.
https://sympathink.com/reviews/best-aquarium-heater/
https://www.fishkeepingworld.com/best-aquarium-heater/
https://www.thesprucepets.com/top-submersible-aquarium-heaters-2925818
https://fishtankadvisor.com/best-aquarium-heater-reviews/