Skip to main content

PawTracks may earn a commission when you buy through links on our site.

The best fish tank heaters to warm up your pet’s habitat

A water heater for small fish tank is even more important when living in cold weather and during winter season. When temperatures drop overnight, you can be sure that your aquarium will stay an ideal habitat for your fish. Check out this collection of the best fish-tank heaters available for pet owners today.

With so many options out there for fish tank water heaters, is easy to feel overwhelmed. Figuring out the right one for your size of tank or type of fish might seem like a lot of work, but don’t worry. We have carefully selected the best options that offer reliability and peace of mind.

DaToo Submersible Fish Tank Heater

Best Suction Power

The DaToo Submersible Fish Tank Heater is an adjustable solution that regulates steady temperatures between 68 and 93 degrees F, depending on your fish needs. Made with BPA plastic and featuring a slim profile, this water heater can be used in both saltwater aquariums and freshwater tanks.

Orlushy Submersible Aquarium Heater

Best Value

For bigger tanks, the Orlushy Submersible Aquarium Heater offers great performance at a great price. It comes with a thermometer to help you monitor your water at all times. It offers precise control to within 1 degree and can set your tank temperature between 68 to 89 degrees F.

Fluval E Electronic Heater

Best LCD Display

Get a clear readout of your tank water temperature with the Fluval E Electronic Heater. It’s the most accurate and simple way to keep your aquarium at optimal conditions and help your fish to thrive. Our favorite feature is the LCD display that shows the current water temperature. This heater is made in the USA and has been field tested to offer the best performance.

Controlling your aquarium water temperature is one of the most important aspects of being a good fish pet parent. Take the guessing and the worry out of it by choosing one of the curated options we compiled in our list. They are reliable, affordable, and will help you provide your aquatic friends the best conditions to live in an aquarium.