Best 55 Gallon Tank Aquarium Heaters of 2025

Janie Foster Avatar
Janie Foster
Last Updated: Jan 7, 2025

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When it comes to keeping fish in an aquarium, maintaining the right temperature is crucial for their health and well-being. A 55 gallon tank aquarium heater is an excellent solution for ensuring that the water stays at the optimal temperature. These heaters come in various types, such as submersible and external, and can be adjusted to suit the specific needs of different fish species. They are also designed to be durable and long-lasting, making them a worthwhile investment for anyone looking to keep their aquatic pets healthy and happy.

At a Glance: Our Top Picks

Orlushy 500W Submersible Heater Cover #TOP 1
Orlushy 500W Submersible Heater
ftb score rating icon 9.8
AHJ 300W Submersible Aquarium Heater Cover #TOP 2
AHJ 300W Submersible Aquarium Heater
ftb score rating icon 9.7
Dreyoo 2 Set Aquarium Fish Tank Heater Cover #TOP 3
Dreyoo 2 Set Aquarium Fish Tank Heater
ftb score rating icon 9.5

Top 7 55 Gallon Tank Aquarium Heaters

#TOP 1

Orlushy 500W Submersible Heater

RH500
gray
500W
Orlushy 500W Submersible Heater Cover
Orlushy 500W Submersible Aquarium Heater, Adjustable Fish Tank Heater with Digital Display External Controller, Overheat Protection and Free Thermometer for 55-80 Gallons Freshwater and Saltwater Tank

The Orlushy 500W Heater is ideal for 55-80 gallon aquariums, providing efficient heating with its compact design. Made from durable quartz glass, it offers safety and longevity, making it perfect for both freshwater and saltwater environments. The heater features a rapid heating system that ensures consistent water temperatures, protecting your aquatic life from harmful fluctuations. With its external controller and LED display, you can easily adjust the temperature without getting wet, allowing for a hassle-free experience while monitoring real-time conditions.

What We Like
Compact size
Durable quartz glass
Rapid heating
External control
Real-time temperature display
#TOP 2

AHJ 300W Submersible Aquarium Heater

AHJ
heaters
Black
300W
AHJ 300W Submersible Aquarium Heater Cover
Aquarium Heater for 40-55-75 Gallon, 300W Submersible Fish Tank Water Heater with Accurate Temperature Control, Over-Temp Protect, Auto Shut-Off, Quick Heat up for Saltwater & Freshwater

The AHJ Submersible Heater offers precise temperature control, maintaining a stable environment for your aquatic pets. You can trust its quick heating capability, ideal for 40-70 gallon tanks, ensuring your fish are comfortable. Safety is a priority with features like over-temperature and low water protection, which automatically shut off the heater if needed. The external controller makes it easy to adjust settings without getting your hands wet, allowing you to monitor and maintain your tank's temperature effortlessly. This user-friendly design ensures your aquatic environment is safe and cozy.

What We Like
Accurate temperature control
Fast heating capability
Safety features included
Easy to adjust settings
#TOP 3

Dreyoo 2 Set Aquarium Fish Tank Heater

as shown
Dreyoo 2 Set Aquarium Fish Tank Heater Cover
Dreyoo 2 Set Aquarium Fish Tank Heater, Submersible Aquarium Heater with Thermometers Stickers and Suckers, Adjustable Knob Aquarium Water Heater Built in Thermostat for Aquariums (300 W)

The Dreyoo 2 Set Aquarium Fish Tank Heater is a reliable and convenient option for maintaining the perfect water temperature in your 40-55 gallon aquarium. With a 300W power capacity, this submersible heater is designed to provide precise temperature control within a range of 68 to 93°F. The built-in thermostat ensures that the water climate remains uniform, preventing temperature fluctuations that could be harmful to your fish. The package includes two aquarium thermometers with suction cups, allowing you to easily monitor the temperature of your tank. The 2mm thickened quartz glass construction makes this heater suitable for both fresh-water and saltwater aquariums. With its distinct design and easy installation process, the Dreyoo Fish Tank Heater is a great choice for any aquarium enthusiast.

What We Like
Precise temperature control
Includes two aquarium thermometers
Safe for both fresh-water and saltwater aquariums
#TOP 4

MQ Submersible Aquarium Heater Auto Thermostat

MQ
HL-288
MQ Submersible Aquarium Heater Auto Thermostat Cover
MQ Submersible Aquarium Heater Auto Thermostat, 500W Fish Tank Heater with LCD Digital Aquarium Thermometer, Shatter-Proof and Blast-Proof

This aquarium heater is suitable for fish tanks that are 55-80 gallons. It has an adjustable temperature feature, allowing you to set the temperature between 68-94℉. The heater is made of shock-resistant quartz glass and is covered with a double-sealed case making it blast-proof. It comes with an extra thermometer that shows the accurate temperature of the tank.

What We Like
Adjustable temperature
Blast-proof
Comes with an extra thermometer
#TOP 5

HITOP 400W Aquarium Heater

black
HITOP 400W Aquarium Heater Cover
HITOP 400W Aquarium PTC Heater with Controller: Digital Heater for Fish Tank and Turtle Tank 55-100Gallon, Sturdy Heater with Removable Protective Cover

The HITOP Aquarium Heater is designed for fish and turtle tanks ranging from 55 to 100 gallons, making it versatile for both freshwater and seawater environments. Its PTC heating technology ensures efficient heating and a longer lifespan, giving you peace of mind. The digital controller allows you to easily monitor and set temperatures between 68-93 ℉, ensuring your aquatic pets thrive in a comfortable environment. Additionally, the removable protective cover makes cleaning a breeze while providing safety against impacts and burns, protecting your aquarium inhabitants.

What We Like
Efficient PTC heating technology
Easy-to-read digital display
Removable protective cover
Simple installation with suction cups
#TOP 6

AQQA 500W Aquarium Heater

GUS-AQ073-100W-US
Black
500W for 55-130Gal
AQQA 500W Aquarium Heater Cover
AQQA Aquarium Heater 500W for 55-130 Gallon Fish Tank Heater Quartz Glass Submersible Betta Fish Heater for Aquarium Thermostat Heater with External Digital Controller (AQ136-500W for 55-130Gal)

The AQQA Aquarium Heater offers reliable performance for your fish tank. Its durable construction with explosion-proof quartz glass ensures safe and efficient heating. You will appreciate the overheating and anti-dry protection features, which automatically stop heating if the temperature exceeds your set point, keeping your fish safe. The intelligent automatic heating system maintains the desired temperature without constant adjustments, saving you time and effort. Plus, the external controller makes it easy to set and monitor temperatures, allowing you to customize your tank environment with ease.

What We Like
Durable construction
Overheating protection
Automatic temperature control
Easy external settings
#TOP 7

hygger 200W Aquarium Heater

HUS-HG102-200W
hygger 200W Aquarium Heater Cover
hygger Aquarium Heater 200W,Submersible Fish Tank Heater with Digital LED Controller,Overheating & Auto Shut Off Protection,Betta Turtel Tank Heater,for Saltwater & Freshwater Fish Tank 20-55Gallon

The hygger Aquarium Heater is a powerful 200W device designed for tanks ranging from 20 to 55 gallons. Its multifunction LED controller makes it easy for you to monitor and adjust the water temperature, ensuring a comfortable environment for your aquatic pets. With advanced safety features like overheating protection and an automatic shut-off when the heater is out of water, you can feel confident in its reliability. Additionally, the heater's durable materials and quick heating capabilities mean that you can maintain a stable habitat for your fish or turtles with minimal effort.

What We Like
Durable construction
Easy temperature control
Overheating protection
Quick heating
Buying Guide Image

Frequently Asked Questions (FAQs)

1. What size water heater do I need for a 55 gallon fish tank?

A standard 55 gallon aquarium will require a 165-watt heater at a minimum. A heater this size will be sufficient if the difference between the aquariums temperature and the ambient room temperature is around 5 degrees Fahrenheit.

2. Is a 200 watt heater good for a 55 gallon tank?

The ViaAqua 200-watt aquarium heater is the last in our list of best aquarium heaters for 50 to 55-gallon tanks. This glass tube heater squeezes a complete range of features into one compact and efficient heater. All the tools and components are built into the heater for all your aquarium heating solutions.

3. Can I use a 300 watt heater in 55 gallon?

300W heater for 55 gallon is an overkill - unless your home temperature goes down to about 40 to 50 degrees F - which I doubt.

4. Where does the heater go in a 55 gallon tank?

Position your heater near a filter inlet/outlet or a circulation pump to ensure even heat distribution. Submersible aquarium heaters can be installed horizontally near the bottom of the tank for best results. They can also be positioned vertically if that is your preference.

Editor's Notes

During our 55 gallon tank aquarium heater research, we found 24 55 gallon tank aquarium heater products and shortlisted 7 quality products. We collected and analyzed 13,712 customer reviews through our big data system to write the 55 gallon tank aquarium heaters list. We found that most customers choose 55 gallon tank aquarium heaters with an average price of $29.68.

The 55 gallon tank aquarium heaters are available for purchase. We have researched hundreds of brands and picked the top brands of 55 gallon tank aquarium heaters, including Orlushy, AHJ, Dreyoo, MQ, HITOP. The seller of top 1 product has received honest feedback from 262 consumers with an average rating of 4.8.

Written by
Janie Foster Avatar

Janie Foster is a writer & pet blogger from Los Angeles, she enjoys living with her two cats and three dogs. She owned her first dog 10 years ago and then started her personal blog to record her dog's daily life. Throughout her personal life, she has developed specialized knowledge in pet care, pet nutrition, feeding habits, and more.