10 Best aquarium heaters in Canada

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Last Updated - 2025/05/12

Best Choice

01
Eheim

Eheim 3619090 Jager Aquarium Thermostat Heater 300W

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9.1 Simple to use

8.4 worth the money

8.4 Temperature control
Main highlights

Thermo safey control protects against running dry.
Size of Heater is 20” X 1.4” Diameter
On/Off indicator light for at-a-glance monitoring.
Made of shock resistant and shatter proof glass for fresh or marine water.
Heater is meant for Tanks between 159-264 Gallons.
Fully submersible, will automatically turn off when water level dips too low.
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9.8

Exceptional

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02
Fluval

Fluval T300 Fully Electronic Aquarium Heater, 300W, up to 80 US Gal / 300 L

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Main highlights

Large grip dial easily adjusts water temperature from 72-90˚F / 22-32˚C
In absence of water, the T-Heater automatically cuts power to prevent overheating and Heater Guard provides additional protection against breakage
Fully submersible design allows for placement anywhere in aquarium either vertically or horizontally
300-Watt heater designed for freshwater aquariums up to 80 Gal (300 L) with advanced electronic construction provides superior accuracy, stability and long-term performance
24/7 monitoring regulates temperature and avoids large, unsafe fluctuations and 360° indicator light ring displays heat mode clearly from any angle (illuminates RED when heating function is engaged and BLUE when desired temperature is achieved)
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9.6

Exceptional

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Value for Money

03
Tetra

Tetra HT Submersible Aquarium Heater With Electronic Thermostat, 50-Watt

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8.9 Easy installation

8.0 Temperature control

8.0 worth the money
Main highlights

The HT10 uses a built in electronic theromstat to automatically maintain water at 78° F which is ideal for most tropical fish. No adjustment is requried.
The HT heater is fully submersbile and can be installed vertically or horizontally. It's small footprint makes it easy to conceal behind plants or other décor.
Please read all label information upon delivery. DO NOT plug heater into an electrical outlet until it is placed inside the aquarium.
Ideal for aquariums between 2 to 10 gallons with hoods or glass canopies
All Tetra HT heaters have indicator lights to let you know when the heater is on. It will be red when heating and green when the proper temperature has been reached.
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9.5

Excellent

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04
NICREW

NICREW Aquarium Heater 100W, Temperature Adjustable Fish Tank Heater with Controller for 10-20 Gallon, Overheat Protection

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9.1 Vacuum strength

8.0 Temperature control

8.0 Precision
Main highlights

ULTRA TOUGH CONSTRUCTION: Crafted from durable thermal shatter-resistant quartz glass, this heater guarantees safety and reliability in heating your aquarium.
OVERHEAT PROTECTION: The heater is programmed to automatically turn itself off if the water temperature exceeds 98℉, protecting your fish from overheating.
IDEAL FOR YOUR AQUARIUM: The NICREW BH Aquarium Heater is a versatile choice for both freshwater and saltwater aquariums, maintaining constant and stable temperatures for your aquatic creatures to thrive.
EASY INSTALLATION: With its sleek and compact design, the heater can be easily installed vertically or horizontally using the included suction cups.
ADJUSTABLE TEMPERATURE SETTING: Experience effortless temperature adjustment and monitoring with convenient controller, ensuring precise control for optimal water temperature, temp accuracy ±2°F.
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9.4

Excellent

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05
HiTauing

HiTauing Aquarium Heater, 50W/100W/200W/300W/500W Submersible Fish Tank Heater with Over-Temperature Protection and Automatic Power-Off When Leaving Water for Saltwater and Freshwater

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8.9 Temperature control

8.9 Precision

8.9 Vacuum strength
Main highlights

【Wide Range of Use】This 300 watt adjustable aquarium heater is suitable for many occasions. The fish market is a common place for us. It can maintain the freshness of fish. They are also suitable for places where aquatic life such as fish tanks, aquariums, and small fish ponds are kept. There are strong suction cups on the heater guard and the thermometer, it's easy to install the aquarium heater no to the tank walls or bottom, please keep them fully submerged.
【Rapid Heating and Two Temperature Control System】300W aquarium heater is sutable for 40-75 gallon fish tank and made of the most stable nickel-chromium heating wire, which can quickly and stably conduct heat to the surroundings. It has a built-in temperature control system of Fahrenheit and Celsius(Temp range: 63-94℉/17-34℃). You can press and hold the button next to the controller for 2-3 seconds to switch.
【Intelligent Water Sensor and Over Temperature Protection】This fish tank heater has a unique intelligent temperature and water sensor system, the heater will automatically stop heating when the heater is completely out of water or it rapidly heats beyond the set temperature, the indicator light will turn green in both cases to ensure the maximum safety of you and your aquatic organisms just like protecting our own safety.
【Explosion-proof Quartz Glass Aquarium Heater】The submersible aquarium heater is made of explosion-proof quartz glass material and a high-temperature resistant nickel-chromium heating wire with silicon carbide heat conduction, faster water heating and longer lasting. And the stronger black shell is a high temperature resistant ABS material which protect the fish, your aquatic organisms and you from scalding.
【Accurate External Digital Display Controller】The external IC temp controller of this aquarium water heater can show the water temp with 2 red LED digits. The temperature in Fahrenheit and Celsius is displayed, which can be switched by pressing and holding the button for a few seconds. To set the temp, just press the button over and over until the screen displaying the temp you desired, the setting is done and the led shows the current water temp again.
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9.3

Excellent

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06
Bnzaq

Fish Tank Aquarium Heater - Adjustable Temperature Submersible Thermostat Heater,25W/50W/100W/150W/200W/300W

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8.0 Vacuum strength

8.0 worth the money

8.0 Precision
Main highlights

[PREMIUM SHATTERPROOF GLASS]Made of shatterproof glass and BPA-free plastic.Bnzaq aquarium heaters are fully submersible and safe for fish without any toxic substance producing.
[NO LONGER CHILL YOUR FISH]Automatically regulate and maintain water temperature,imitate the original ecological environment for your tropical fish.Provided fish with warm water environment.Perfect to apply to fresh and salt water.
[AUTOMATIC CONSTANT TEMPERATURE]When water temperature reaches set value,the indicator light will be OFF and the heater will automatically stop heating.The heater will automatically start heating and indicator light will be ON if water temperature is low.You could place heater horizontally or vertically.
[ATTENTION]Please place the heater near place (filter or pump) of water flowing to keep more even water temperature.Unplug the heater 30 minutes early when changing the water for the fish tank.
[ADJUSTABLE TEMPERATURE]Temperature range: 68°F~90°F.25W heater is suitable for fish tank under 8 gallons,Length:7.7".Easy to adjust temperature by the aquarium heater that suit more species of fish.
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9.1

Excellent

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07
HITOP

HITOP Adjustable Aquarium Heater with Protective Cover, 50W 100W 120W Fish Tank Heater for 10/20/30 Gallon Fish Tank or Turtle Tank

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8.2 worth the money

8.2 Temperature control

8.2 Vacuum strength
Main highlights

Safe: We adopt 2mm thickened explosion-proof glass, 33% thicker than normal aquarium heaters, more durable, much safer for both human and animals.
Easy to Set Temperature: After set the temp you want, due to the automatic switch device and temperature detection system, aquarium heater will turn off automatically when its temp reaches your pre-set, also will turn on when lower than it, safe and easy adjustment.
Double Protection: There is a protective cover wrapping the heater tube, triangle streamlined design, full of modernity, not only double safety, but also space-saving and beautiful in your aquarium.
Dimension: 50W, 19 x 4 CM / 7.5 x 1.6 IN. Situable for fish tank 5-15gallon.
Accurate and Steady Temperature-control: Adjustable heater from 68°F to 93°F (20°C - 34°C). A good temperature range for most fishes is 76°F to 80°F (25- 27°C). An additional stick-on thermometer as a bonus to detect water temp at any time.
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9.0

Excellent

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08
boxtech

Boxtech Small Fish Tank Heater - Mini Aquarium Heater, 50w Submersible Turtle Heater with Adjustable Temperature External Controller for 3 to 12 Gallon Betta Aquarium Tanks

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Main highlights

【Overheating and Dry Running Protection】 Intelligent induction unit with auto memory function, can be safer for you and your fish. Fault code: E1 - Anti-dry protection, E2 - Overheating protection. Take the heater out of the water and put it back in when the error code appears.
【LED Digital Display and External Temperature Controller】Digital temperature display can easily see real temperature and error code. External controller can let you adjust the temperature you want without getting your hands wet.
【Energy-saving and Fast Heating】 Thickened explosion proof quartz tube design, safety and durability. Designed with metal-ceramic heaters are energy efficient and will maintain a constant aquarium water temperature after 72 hours of continuous heating.
【Caution】press and hold for 3 seconds to toggle between°C and °F. Do not bury the heater in sand or mud; immerse the heater vertically in fish tanks and horizontally in turtle tanks.
【50w Mini Aquarium Heater】 Small tank heater fits 8-17 gallon aquarium with 5.35ft power cord. Temperature can be accurately adjusted from 68 to 93°F. Ideal for use in low water level turtle tanks, fish tanks, betta tanks etc.
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8.9

Very Good

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09
Abhirsh & Design

Abhirsh Aquarium Heater 50 Watt - Reliable Fish Tank and Immersion Water Heater, Adjustable Temperature Submersible Thermostat Heater for 5-10 Gallon

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9.7 Vacuum strength

9.3 Precision

8.9 worth the money
Main highlights

Peace of Mind: With its advanced features and reliable performance, our aquarium heater provides peace of mind, ensuring the optimal environment for your aquatic pets.
Overheat Protection: Our aquarium heater includes built-in overheat protection, ensuring the safety of your fish and preventing any potential hazards.
Explosion-Proof Quartz Glass: Crafted with high-quality and explosion-proof quartz glass, our heater offers durability and safety, ensuring reliable performance over time.
Easy Temperature Adjustment: With a user-friendly knob, you can easily adjust the temperature according to your specific requirements, providing precise control over your aquarium's environment.
Dual Temperature Reading: Our heater features dual temperature reading options, allowing you to monitor the water temperature both in Celsius and Fahrenheit for added convenience.
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8.8

Very Good

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10
LQKS

10W Aquarium Heater,Fish Tank Heater,Mini Tank Heater Heating Rod Constant Temperature Heater,USB Interface Design Rechargeable Heating Accessory for Aquarium and Small Fish Tanks

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Main highlights

【Convenient and Energy-Saving】: With a USB interface, it can be powered by a power bank for use anywhere. Plus, with only 10W low power consumption, it’s both convenient and energy-efficient.
【Space-Saving Design】: Designed for desktop small fish tanks under 25L, its minimalist design doesn’t take up space while creating a cozy habitat for your aquatic pets.
【Precise Temperature Control】: Our Fish Tank Heating Rod utilizes advanced temperature sensor technology for precise control, ensuring minimal temperature difference and small errors to keep your aquatic pets comfortable and happy.
【Even Heating, Durable Build】: Crafted with black gold sand material, this heating rod provides even heat distribution for your aquatic pets’ stable and safe environment, without the risk of explosions.
【Automatic Temperature Adjustment】: Keep your fish healthy with our fish tank heating rod featuring a built-in smart chip that automatically adjusts water temperature to 26°C. No manual adjustment needed, just plug and play for hassle-free operation.
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8.6

Very Good

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