Best Aquarium Heater

Best rated Submersible Aquarium Heaters

Best Aquarium Heater

If you’re wondering what an aquarium heater is & how you will get the best one available, you’ve come to the right place. Fish pets are not only colorful and beautiful but also they have a very sensitive nature and so they must need the agreeable temperature in order to survive in the aquarium.

Failure to maintain the ideal temperature can end up causing serious health risks, stress & even death for your tank inhabitants like fish & other species, so it is inevitable to check out & maintain the optimum temperature in your fish aquarium to make sure that your aquatic pets are healthy, fit & strong at all the times.

It is obvious that you should have the best aquarium heater to ensure that your aquatic pets are comfortable. However, deciding on the best aquarium heater can be a daunting task from an entire world of aquariums.

Finally, you can choose one appropriate for you by taking a close look at the best-rated aquarium heaters submersible with Thermostat for the ideal temperature for your much-adored fish pets. Here’s the list of top pick units.

Aqueon Pro Heater

You can find this model in 5 multiple voltage levels: 50 watts, 100 watts, 150 watts, 200 watts and 250 watts depending on the size of your aquarium. It is a small size heater and weighs only 14 ounces. The excellent electronic thermostat offers a high level of temperature accuracy adjustment.

Equipped with the monitor power light feature.
Extreme resistance against cracks and abrasions.
An excellent shatterproof design.
Fully submersible into the water.
Multiple watt options.
No dangerous electrical hazards.
May feel a bit cheap
Long charging time.


Hydor In-Line External Heater – Original ETH

This aquarium heater which can be installed on return lines produces heating without any overheating risks due to the elite PTC technology. There’s no need to worry about temperature variations with an inner heat pump framework. ETH is best suited both for marine and freshwater aquariums.

Designed with the elite PTC technology.
No overheating fears.
An inner heat pump framework for high productivity.
Stable thermostat.
Suitable for aquariums with multiple sizes.
Leakage chances in case the glass tube breaks
Hard for the user to set it under a stand


Cobalt Aquatics Neo-Therm Heater

The heater is equipped with elegant design, small in size, one touch control system, an advanced electronic thermostat & two indicator lights. The product also offers an integrated thermal protection without any overheating fears. The outer casing features waterproof and shatterproof competence so you can set it anywhere you want in the tank. The user can choose from 50 watts, 75 watts, 100 watts and 150 watts.

Waterproof & Shatterproof
Thermal protection circuitry
Small and appealing style
An advanced thermostat
Two indicator lights
Suctions sometimes starts acting up


EHEIM Jager Thermostat Heater

The heater is designed to keep the heating temperature constant with a system named Tru Temp to recalibrate the heating for temperature regulation. The heater comes with quite uncomplicated functions which are easy to use for anyone. In order to avoid any mishap caused by overheating, combustion, and electrical hazards, it is built-in-in shock resistant and shatterproof features.

Simple and magnificent design
Tru Temp System
Shock resistant and shatterproof
Multiple wats from 25 to 300
The issue of overheating due to the occasional failure of the Tru Temp system


Fluval E Electronic Heater

This heater is built-in overheating proof, shockproof and shatterproof features. The device comes with easy to use settings for anyone. For temperature reading accuracy, it boasts an advanced microprocessor as well. The model is on offer with four various sizes and watts.

Multiple watts from 50 to 300
Multiple sizes
Advanced safety guard for aquatic inhabitants
LCD screen
Much more expensive
The thermostat & the LCS screen sometimes malfunction
Overheating complaints from a few users



Being the owner of an aquarium, taking all possible measures to keep your water pets healthy, fit and active is your utmost priority, and for this purpose, you need to keep the aquarium temperature ideal. The above list is designed to help you choose the one without absorbing a great deal of your time.