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Best Turtle Heaters For Aquariums

Maintaining an ideal temperature for your turtle’s habitat is vital for their wellbeing and overall health, a task that requires the best turtle heaters for aquariums to ensure a warm, hospitable environment.

For those of you in a hurry, here are our top picks:

If you have more time, please continue reading our comprehensive guide, which features a curated list of the top ten aquarium heaters specifically designed for turtles. The guide aims to clarify the purpose of turtle heaters, distinguish the various types available in the market, and provide a buyer’s guide to assist you in choosing the optimal turtle heater for your specific setup.

Please keep in mind, the size of your tank significantly impacts your heating requirements and is a crucial factor to consider when exploring our top picks for the best turtle heaters for aquariums.

Why do I need an aquarium heater for my turtle?

Like most other reptiles, turtles are cold-blooded. This means that they cannot self-regulate their body temperature like us mammals can. Instead, turtles must rely on external heat sources to adjust their temperature.

Turtles rely on the warmth of the sun to get their bodies moving. They must maintain their circulation by swimming in relatively warm waters. If the water gets too cold, turtles will become sluggish and this can lead to health problems. This is especially true for fully aquatic turtles.

It’s even more important to keep the water warm if you have hatchlings or younger turtles. At these stages of their lives, turtles are more reliant on warmer temperatures to help their metabolisms. Warmer temperatures also help turtles to protect themselves against infections or diseases.

Different turtle species will require slightly different water temperatures. Make sure to bear this in mind when selecting a water heater.

Types of aquarium heaters

When it comes to turtles, two main types of aquarium heaters enter our consideration; external heaters and submersible heaters. Choosing which type to use will depend on your experience as well as the exact setup your turtle has.

External heaters

As their name implies, external heaters connect to the outside of the aquarium. They heat the water by sucking liquid in through their tubes, passing it through the heating system, and then releasing it back into the water through another tube.

While slightly more fiddly than submersible heaters, external units can still be pretty easy to set up. Some will even connect directly to your filter system, giving you heating and filtration through one device. The Hydor In-line External Heater is a great example of an external heater.

These heaters aren’t as popular as submersible units, but some keepers prefer the aesthetic of not having their heater cluttering the inside of their tanks.

Submersible heaters

Submersible heating units are the most popular choice among turtle owners. These heaters can be placed directly in the tank underneath the water. By using a submersible heater alongside a powerful filtration system, you can evenly heat the water in your tank.

Most submersible heaters look like rods that are attached to the side of the aquarium. They are usually constructed from a plastic or even glass casing that contains the heating filaments. The casings also feature protective guards to stop your turtle from being burnt if they touch the heater.

One of the submersible heaters on our list is the Aqueon Pro Adjustable Heater.

Best Turtle Heaters

1. TetraFauna Aquatic Reptile Heater

Tetra 26445 Fauna Aquatic Reptile Heater For Frogs, Newts & Turtles,100 Watt,green

Our first turtle heater comes from TetraFauna and makes our list because it’s an absolute workhorse. The TetraFauna Aquatic Reptile Heater is suitable for tanks that contain around 30-gallons of water, and the automatic thermostat keeps the water temperature at exactly 78 degrees Fahrenheit.

The two powerful suction cups let you stick the TetraFauna wherever you need it, while the eight-foot power cord can be extended from multiple parts of the unit, ensuring that you’ll always be able to reach a power outlet.

The TetraFauna also comes with a two-year warranty, giving you peace of mind. This durable, reliable aquarium heater is a solid choice for any turtle owner.

2. Tetra HT Submersible Aquarium Heater With Electronic Thermostat

Tetra Submersible Heater With Electronic Thermostat, 200-Watt

Our next heater is the Tetra HT Submersible Heater. The great thing about the Tetra is its small form factor, meaning that it suits smaller tanks and can also be conveniently hidden behind an ornament or plant if you don’t want to see the heater.

The Tetra HT Submersible Heater uses an automatic thermostat to keep the water temperature at a comfortable 78 degrees Fahrenheit. The Tetra may be small, but it’s also powerful with a capacity of 200 watts. This will suit aquariums of up to 55-gallons.

Along with its durable plastic and glass tube construction, the Tetra HT Submersible Heater is a great choice.

3. Aqueon Pro Adjustable Heater

Aqueon Pro Adjustable Heater, 100W

For more control over your tank’s water temperature, you can’t go wrong with the Aqueon Pro. This thin submersible heater gives you complete control of the temperature at all times. Using the dial, you can set the temperature between 68 and 88 degrees Fahrenheit.

The Aqueon Pro is also available in five different capacities to fit any size tank, ranging from 50-watts up to 250-watts. The sleek black shatter-proof construction gives the Aqueon Pro a minimalist look.

The suction cups allow you to mount the Aqueon Pro horizontally or vertically, making this one of the most versatile submersible water heaters for your turtle tank.

4. Fluval E Advanced Electronic Heater

Fluval E200 Advanced Electronic Heater, 100-Watt Heater for Aquariums up to 65 Gal., A773,Black

One of the most popular devices on the market, the Fluval E Series provide everything you could need in a turtle heater. The Fluval Advanced Electronic Heaters are available in capacities ranging from 50-watts to 300-watts, meaning that there’s a model to suit every tank size.

The clear LCD display shows the water temperature in real-time, allowing you to make minute adjustments as needed. The functional, utilitarian design features three powerful suction mounts and an emergency cut-out feature that protects your turtle in the event of any problems.

The Fluval E Advanced Electronic Heater is clearly one of the best turtle water heaters available.

5. Eheim Jager Thermostat Heater

Eheim 3619090 Jager Aquarium Thermostat Heater 300W, Black

One of the market’s best-selling underwater heaters for turtles is the Eheim Jager. Eheim is a byword for quality in the aquarium hobby, and this heater is no exception.

Available in capacities ranging from 25-watts up to 300-watts, there’s an Eheim Jager for every size turtle tank. Suction cups keep the heater attached to your tank, while the dial mounted on the top of the column allows for precise temperature control.

There’s also an emergency cut-out system if the water level drops, while the shatter-proof glass protects the Eheim Jager, and your turtle, from any nasty accidents. This submersible device is the gold standard when it comes to aquatic turtle water heaters.

6. ViaAqua Quartz Glass Submersible Heater

ViaAqua 200-Watt Quartz Glass Submersible Heater with Built-In Thermostat

The ViaAqua Quartz Glass series of submersible heaters are incredibly easy to use heaters that can suit most tank sizes, with the heaters available in models varying from 50-watts to 300-watts.

Most of the ViaAqua’s slim quartz glass body is taken up by a super clear thermometer, allowing you to easily keep track of the water temperature. The simple dial system on top of the heater allows you to control the temperature quickly.

The ViaAqua is a durable unit and is easy to set up and attach to your aquarium thanks to the powerful suction cups. These heaters are a great choice for beginners and experts alike.

7. Finnex Deluxe Titanium Tube Heater with Guard

Finnex Titanium Aquarium Heater, Premium Nickel Coil, Large 19mm D Tube, Heater Guard (800 Watts)

For larger turtle tanks, the Finnex Deluxe Titanium Tube Heater is one of the best choices available. The powerful heating elements come in 300, 500, or 800-watt strengths, suitable for tanks of 80-gallons or more.

The titanium construction is virtually indestructible, while your turtles are protected from the element by the clip-on protective guards. The only downside to this heater is that you’ll need to buy a temperature controller and thermostat separately.

But if you have a large tank, there’s no better choice than the Finnex Deluxe.

8. FREESEA Aquarium Heater With LED Display

FREESEA 50W Mini Aquarium Heater Fish Tank Submersible Heater with LED Temperature Display

Our last heater is the FREESEA Aquarium Heater, a nifty little unit that will suit smaller tanks. The 100-watt version is probably going to be the best option here, as turtles shouldn’t be kept in too small a tank. You can adjust the temperature between 59 and 94 degrees Fahrenheit.

The FREESEA is a submersible device that can hang in the tank or fix to the bottom. The FREESEA is equipped with an LED screen that indicates the temperature of the tank at all times and an external thermostat dial that you can control without inserting your hand into the water.

If you are just getting started with a smaller tank or if you have hatchlings, the FREESEA Aquarium Heater is a good pick.

Buyer’s Guide to Turtle Heaters

When it comes to buying the best turtle water heater, there are a few factors to bear in mind. In this clear and concise buyer’s guide, we’ll point out what to look for when purchasing a turtle heater.

Tank size and wattage

Remember when we said you’ll need to know your tank size when choosing a water heater? That’s because the larger your tank is, the more powerful a heater you will need to adequately heat all of the water in your aquarium. Here are some general guidelines regarding compatible measurements:

  • For a tank holding up to 15-gallons, choose a 50-watt heater
  • For a tank holding up to 30-gallons, choose a 100-watt heater
  • For a tank holding up to 45-gallons, choose a 150-watt heater
  • For a tank holding up to 65-gallons, choose a 200-watt heater
  • For a tank holding up to 80-gallons, choose a 300-watt heater

Safety measures

Because installing a turtle heater involves bringing electronics into the water, it is vital that any heater you choose has some built-in safety features. The two most important safety features to look for are an emergency cut-off system and temperature guards to protect your turtle.

Emergency cut-off systems are devices that shut down the heater if the water level suddenly drops. This is because the majority of heaters are designed to be fully submerged, not exposed to the air.

If heaters are installed incorrectly or if the water level drops below the heating unit, you could put your turtle at risk of electric shocks.

Temperature guards are protective casings that keep your heater from harming your turtle. While your turtle swims around, they may brush up against the heater. If there are no guards in place, then your turtle may suffer some nasty burns.

A lot of turtle heaters, like the TetraFauna Aquatic Reptile Heater and the Finnex Deluxe Titanium Tube Heater, come with protective guards to keep your turtle safe.

Temperature reading and control

One of the most important features of a turtle heater is that you can measure and control the temperature. This measurement should be accurate otherwise the temperature may become too hot for your turtle or cause the unit itself to overheat. Both are debilitating for your pet.

Choose a heater with an easy to read temperature gauge, and make sure that the controls are simple and clear. Having the right amount of control over your heater is important for the safety of your turtle. Two of the easiest heaters to read and set is the ViaAqua Quartz Glass Heater.

Type of heater

As we discussed above, there are two main types of aquarium heaters used for turtles. Using a submersible water heater for your turtle tank, like the Tetra HT, is the most common choice as it allows the heater to be easily attached as well as hidden behind plants or decorations.

However, some setups will suit the use of external filters such as the Hydor In-line External Heater. If you use an external filter system, then you can usually attach an external heating unit to the filtration device, cutting down on electronic equipment around your tank.

What is the best heater for a turtle tank?

For overall reliability and suitability for various tank sizes, we recommend the Eheim Jager Thermostat Heater.
For excellent value for money and durability, the TetraFauna Aquatic Reptile Heater is a great choice.
If you prioritize versatility and precise temperature control, consider the Aqueon Pro Adjustable Heater.

What kind of heater do turtles need?

Turtles require a submersible or external aquarium heater that can maintain consistent water temperatures suitable for their species and that is equipped with safety features to prevent overheating or turtle injury.

Should I put a heater in my turtle tank?

Yes, a heater is crucial in a turtle tank to maintain the water temperature within the optimal range for your turtle’s health and comfort.

What size heater do I need for my turtle tank?

The size of the heater for your turtle tank depends on the tank’s size; for instance, a 50-watt heater is suitable for up to 15-gallon tanks, while an 80-gallon tank would require a 300-watt heater.

Final verdict

We’ve carefully evaluated and listed the top ten turtle heaters for aquariums in this guide, delving into their key features, and distinguishing the types available. Additionally, we’ve provided a comprehensive buyer’s guide to aid you in making an informed choice when it comes to the best underwater heater for your turtle.

From our top picks:

  • If you’re looking for the absolute best in terms of reliability and suitability for various tank sizes, the Eheim Jager Thermostat Heater stands out as our top recommendation.
  • For those seeking excellent value for money without compromising on quality and durability, the TetraFauna Aquatic Reptile Heater is our recommended pick.
  • If versatility in terms of temperature control and adaptability to different tank sizes is your priority, you can’t go wrong with the Aqueon Pro Adjustable Heater.

We hope you found this guide useful. If you’re planning on purchasing any of these heaters or have any thoughts to share, please feel free to leave a comment below! We appreciate your feedback and are here to assist with any further queries you may have.

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