Aquarium Heater

An aquarium heater is an essential piece of equipment for any fish keeper. It ensures that your fish have a comfortable and stable water temperature, which is crucial to their health and well-being. There are various types of aquarium heaters on the market, so choosing one that best suits your needs is important. In this blog post, we’ll look at everything you need to know about aquarium heaters, including how to choose the right one for your tank.

So, what are you waiting for? If you’re looking for a great selection of aquarium heaters? Check out our selection of aquarium heaters today!

Top 10 Best Selling List for Aquarium Heater

  1. 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
  2. DaToo 50 Watt Aquarium Heater Submersible Adjustable Temperature Fish Tank Heater 50W
  3. Tetra HT Submersible Aquarium Heater With Electronic Thermostat, 50-Watt
  4. Odyssea Aquarium Heater Submersible (100W)
  5. HITOP 25W 50W 100W 200W 300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cup (50W)
  6. DaToo Aquarium Heater Adjustable 25W Submersible Fish Tank Heater with Electronic Chip Thermostat Suitable for Marine Saltwater and Freshwater
  7. hygger Aquarium Heater 300W/500W/800W/1000W, Submersible Fish Tank Heater with Digital LED Controller and Intelligent Leaving Water Automatically Stop Heating System, for Freshwater and Saltwater
  8. YukiHalu Submersible Aquarium Heater 100/150/200/300W, Small Size, Built-in Thermometer, External Temperature Controller, LED Display, Used for 20/30/40/60 Gallons (150Watts)
  9. Kulife Fumak 25W Adjustable Aquarium Heater Super Short Submersible Fish Tank Heater Fish Heater with LED Digital Display Thermostat, for Tanks 3-5 Gallons
  10. Hitop 50W/100W/300W Adjustable Aquarium Heater, Submersible Glass Water Heater for 5 – 70 Gallon Fish Tank (50W for 5-15 Gallon)

Best Seller #1 – How to Tell if Aquarium Heater Is Submersible

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

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

  • 🐠【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.
  • 🐠【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.

Best Seller #2 – Resun Aquarium Heater Instructions

DaToo 50 Watt Aquarium Heater Submersible Adjustable Temperature Fish Tank Heater 50W

DaToo 50 Watt Aquarium Heater Submersible Adjustable Temperature Fish Tank Heater 50W

  • 🐠【50W DaToo Aquarium Heater】: A suitable temperature is very important for our beloved fish. No suitable temperature, our fish will not survive healthy. How to create this comfortable temperature? DaToo will help you. The DaToo Submersible Aquarium Heater is a system that create a warm and comfortable living environment for your lovely fish. Select DaToo Aquarium Heater, Let us care about your fish starting from the water temperature.
  • 🐠【Adjustable Temperature】: Only need turn the knob on the top of the DaToo fish tank heater, You can easily get the temperature you want(68 to 93°F) and you can read the temperature you set by the dial of the aquarium heater. Perfect Thermostat system to ensure that your beloved fish can be happy and comfortable life. Very Convenient !
  • 🐠【Sturdy And Durable】: Still worried about the heater will be broken?Now let’s say goodbye to this worry. The shell of the DaToo Aquarium Heater is made with Shatterproof, Corrosion resistant, Wear-resistant microcrystalline glass(glass-ceramics), can be used in fresh water and salt water.The heating part is made of nickel-chromium alloy, ensure superior heat transfer and enhanced service life. Select DaToo Fish Tank Heater, Let it serve your fish forever.
  • 🐠【BPA Free And Energy Saving】: Every plastic component of the DaToo Fish Tank Heater is made with durable, high-quality, BPA-free plastic. The process of heating does not produce invisible toxins. This means it is safe not only for your fishes, but for you as well. Stepwise heating mode, it will automatically turn on and off to keep your set temperature, reduce electricity consumption. Select DaToo Aquarium Heater, not only care about your fish, but also save electricity fee for you.
  • 🐠【Attention】: This is 50W DaToo Aquarium Heater, 7.6inch, fit 5 to 15 gallons tank with hoods or glass canopies and keep the water flowing. Please make sure that the heater is completely submerged in the water when using it. We provide One Year Warranty and 100% Money-back Guarantee. Select DaToo Products= Own A Private Aquarium Housekeeper.

Best Seller #3 – Resun Aquarium Heater

Tetra HT Submersible Aquarium Heater With Electronic Thermostat  50-Watt

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

  • 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.
  • 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.
  • Ideal for aquariums between 2 to 10 gallons with hoods or glass canopies
  • 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.

Best Seller #4 – Hygger Aquarium Heater

Odyssea Aquarium Heater Submersible (100W)

Odyssea Aquarium Heater Submersible (100W)

  • Fully Submersible
  • Length: 9.50″
  • Wattage: 100W
  • Up to 30G
  • For freshwater or saltwater

Best Seller #5 – Fluval 300w Heater

HITOP 25W 50W 100W 200W 300W Adjustable Aquarium Heater  Submersible Fish Tank Heater Thermostat with Suction Cup (50W)

HITOP 25W 50W 100W 200W 300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Suction Cup (50W)

  • 🐟HITOP aquarium heater 50W, length 7.2-inch, power cord 4.9ft, designed for small fish tanks, recommended for aquariums up to 15 Gallons.
  • 🐟 Thickened Glass: 2mm thickened quartz glass, 33% thicker than 1.5mm normal aquarium heaters, much safer for human and your lovely fishes, your pets will no longer fear the winter.
  • 🐟Adjustable and easy to use: This aquarium heater, adjustable temperature range 68 ~ 93 °F, after setting the temp you want, will on or shut off automatically when the water temperature changes, no extra adjustment is required.
  • 🐟Accurate Temperature Control: This fish tank heater built-in thermostat, will automatically keep the water at the set temperature within±2°F error. Comes with an sticker thermometer to detect water temp at any time.
  • 🐟 Easier installation, you can install it with any angle by 2 powerful suction cups, just make sure it is under water fully. Besides, we provide 1 more extra suction cup for spare (total 3 PCS), and we provide 12 months warranty.

Best Seller #6 – Aqueon 100w Heater

DaToo Aquarium Heater Adjustable 25W Submersible Fish Tank Heater with Electronic Chip Thermostat Suitable for Marine Saltwater and Freshwater

DaToo Aquarium Heater Adjustable 25W Submersible Fish Tank Heater with Electronic Chip Thermostat Suitable for Marine Saltwater and Freshwater

  • 🐟【DaToo D1 Aquarium Heater】: In the cold winter, what do we want most? The answer must be warm temperature, and so is our lovely fish. A warm water temperature can make our pet fish feel happy and full of vitality, it will like to swim around. How can we get a warm temperature? Don’t worry, DaToo D1 aquarium heater can easily bring warm temperature to your beloved fish, so that this winter will no longer be cold!
  • 🐟【Accurate Electronic Temperature Control】: Most traditional glass heaters use mechanical temperature control, but DaToo is different. DaToo creatively uses electronic chip temperature control, which makes the water temperature more accurate and stable. High sensitivity, easily reduce the temperature error to ±1.8°F. DaToo D1 fish tank heater, let your fish have a warm and comfortable winter immediately!
  • 🐟【Easy To Set Temperature】: Just turn the knob on the top of the heater, you can easily set the temperature you need. (Temperature range is 63℉~89℉). When the heater is heating, the heating indicator will light up, and it will automatically turn on and off to keep the water temperature at the set temperature. Comes with a free sticker thermometer, you can know the water temperature at any time!
  • 🐟【Durable And Uniform Temperature】: Perfect temperature control is inseparable from excellent materials. Borosilicate glass shell, high heat resistance, greatly improving the ability of explosion-proof and anti-corrosion, excellent thermal conductivity, more durable. Nickel-chromium alloy heating wire, heating speed is faster, spiral distribution, safer and more energy-saving, allowing heat to evenly fill every corner of the fish tank!
  • 🐟【Super Long Power Cord & ONE YEAR WARRANTY】: The power cord of this heater is 6ft (longer than other heaters). If your fish tank is far from the socket, no need to buy an extension cord, it can easily meet your needs! One Year Warranty and 100% Money-back Guarantee. Buy DaToo products with confidence. JUST DO IT, Let’t Go!!

Best Seller #7 – Fungsi Heater Aquarium

hygger Aquarium Heater 300W/500W/800W/1000W  Submersible Fish Tank Heater with Digital LED Controller and Intelligent Leaving Water Automatically Stop Heating System  for Freshwater and Saltwater

hygger Aquarium Heater 300W/500W/800W/1000W, Submersible Fish Tank Heater with Digital LED Controller and Intelligent Leaving Water Automatically Stop Heating System, for Freshwater and Saltwater

  • 🐠800 WATTS AQUARIUM HEATER – 800W aquarium heater is suitable for 80 to 220 gallon saltwater and freshwater aquariums. The heater length is 10.8 inches, voltage 110-120V, power cord is 10.1 feet. Please select the appropriate wattage aquarium heater according to our size chart
  • 🐠OVERHEATING & OUT OF WATER PROTECTION – When the water temperature exceeds 94°F or it is lower than the minimum water level, the heater will automatically cut off the power and stop heating, it will display an error code and sound an alarm until the water temperature is below 94°F or the heater is completely immersed in the water. Error code: HH-high temp; LL-low temp; AUTO shut off-out off water. Multiple protection, let you get rid of “boiled fish”!
  • 🐠DIGITAL LED CONTROLLER – Temperature adjustable range: 59℉-93℉, Accuracy:±1°F. You can use the included bracket to mount the controller on the edge of the tank to adjust the temperature without reaching into the water. LED controller shows the current water temperature, preset temperature, working power and more warning sign of Low/ Hi temperature/ Auto shut off. Very easy to operate!
  • 🐠EFFICIENT AND EXPLOSION PROOF – The aquarium heater is made of explosion-proof quartz glass and high-temperature resistant nickel-chromium heating wire. This results in faster water heating, safer, and more longer-lasting. The heater guard is made of high quality PC plastic to protect your fish from burns
  • 🐠COMPLETE ACCESSORIES AND WARRANTY – This aquarium heater comes with accessories you need. Package includes 1 aquarium heater, 1 controller, 3 suction cups, 1 bracket and 1 hook. It offers 12 months warranty.

Best Seller #8 – Eheim Heater 200w

YukiHalu Submersible Aquarium Heater 100/150/200/300W  Small Size  Built-in Thermometer  External Temperature Controller  LED Display  Used for 20/30/40/60 Gallons (150Watts)

YukiHalu Submersible Aquarium Heater 100/150/200/300W, Small Size, Built-in Thermometer, External Temperature Controller, LED Display, Used for 20/30/40/60 Gallons (150Watts)

  • 【150Watt for 15-30 gallons】YukiHalu 150W aquarium heater is designed for 15-30 gallons fish tank. Temperature can be accurately adjusted from 64 to 93°F. This heater works well in both saltwater and freshwater. Rated voltage 100-130V.
  • 【Compact size】only 13cm/5 inches length for 100W and 150W heater, 19cm/7.5 inches for 200W heater and 23cm/9 inches for 300W heater. Fits mini fish tank, it takes up less space and easy to hide in the tank. Easy to install
  • 【Automatic thermostat at 1°F accuracy】The heater’s working frequency will be changed according to temperature variation based on Intelligent Frequency Conversion Technology, and the heating is automatically stopped when the set temperature is reached.
  • 【Overheating and lack of water protection】Stop heating automatically if the fish tank lack of water or overheating. Never cook your fish.
  • 【External temperature controller, built-in thermometer】The temperature can be set by external controller, and the water temperature value is displayed on the LED display without the need for an additional aquarium thermometer. The heater will remember the temperature setting, no need to reset the temperature after power off.

Best Seller #9 – Juwel Heater Instructions

Kulife Fumak 25W Adjustable Aquarium Heater Super Short Submersible Fish Tank Heater Fish Heater with LED Digital Display Thermostat  for Tanks 3-5 Gallons

Kulife Fumak 25W Adjustable Aquarium Heater Super Short Submersible Fish Tank Heater Fish Heater with LED Digital Display Thermostat, for Tanks 3-5 Gallons

  • SUPER MINI SIZE – This aquarium heater is SUPER SHORT in length – might be the shortest aquarium heater in the market! It is only a bit more than HALF of the length of the traditional aquarium heaters! The innovative super short length perfectly solves the headache of the fish keepers on the traditional aquarium heaters! Takes up less space, easy to hide, but in full power! Temperature range is 64-93F. 25 Watt for 3 – 5 Gallon tanks.
  • SUPER ACCURATE 1℉ – Thanks to the intelligent inverter technology, with the in-built chips the thermostat keeps the fish heater at a constant temperature at an accuracy of 1℉, much more accurate than the traditional knob-controlled fish heaters and you save your electricity expenses by 50%!
  • DIGITAL DISPLAY WITH DOUBLE TEMP. READINGS – This fish tank heater comes with an external thermostat with digital display that shows 2 readings – the current temperature and the set temperature – very easy to switch by pressing the SET button and you save an extra thermometer for current temperature measuring.
  • DRY RUN / OVERHEATING PROTECTION – Full consideration of safety. With the multiple protections this fish tank heater will stop working when the water level is lower than the minimum water level (DRY RUN PROTECTION) or when the water temperature exceeds 97F (OVERHEATING PROTECTION). You are free from “cooking fish”!
  • MEMORY FUNCTION – The last setting is stored in the chips of the thermostat. In case of a power cut, when the power recovers the fish heater will follow the last setting.

Best Seller #10 – Fluval Flex 57 Heater

Hitop 50W/100W/300W Adjustable Aquarium Heater  Submersible Glass Water Heater for 5 – 70 Gallon Fish Tank (50W for 5-15 Gallon)

Hitop 50W/100W/300W Adjustable Aquarium Heater, Submersible Glass Water Heater for 5 – 70 Gallon Fish Tank (50W for 5-15 Gallon)

  • Explosion Proof: The aquarium heater is made of 2mm thickened quartz glass, 33% thicker than ordinary glass, explosion-proof, not easy to crack, which is very safe for people and aquatic animals.
  • Application: 50W water heater is suitable for 5 – 15 gallon tank, also suitable for both saltwater and freshwater, suitable for fish tanks and turtle tanks, must be completely submerged in water when using.
  • Accurate Temperature: The fish tank heater can be adjusted from 68°F to 93°F (20°C – 34°C), comes with a thermometer sticker, convenient to detect the water temperature without another pay.
  • Long Service Life: This fish heater adopts 8-slot multi-branched heating wire ceramic frame, shorter length, 7.8*1*1 in(20*2.5*2.5 cm), better heat dissipation, and can save more space for your fishes.
  • Complete Accessories and Warranty: This aquarium submersible heater comes with accessories you need, in addition to the thermometer, it comes with 3 suction cups, one for replacement, and offer 12 months warranty, giving you peace of mind after your purchase.

A Guide to Everything About Aquarium Heaters

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How Long Does It Take an Aquarium Heater to Heat Water?

It takes a fair amount of time for an aquarium heater to heat water. On average, it takes 20-40 minutes for a heater to thoroughly warm up the water in a fish tank. The larger the tank, the longer it will take to heat up. It’s important to have patience when heating your tank, as rushing the process can be dangerous for your fish. Allow the heater to run its course and slowly increase the water’s temperature over several hours. Doing so will help ensure the safety of your fish and maintain a healthy aquarium environment.

How to Tell if My Aquarium Heater is Submersible?

You will need to check the manufacturer’s instructions to know if your aquarium heater is submersible. Most submersible heaters will have a watertight seal that prevents water from entering the heating element. If there is no watertight seal, then the heater is not submersible. Additionally, you can check to see if the heater has a thermal cut-off switch. This switch will automatically turn the heater off if it gets too hot, which prevents it from melting or catching fire. Finally, submersible heaters will usually have a higher wattage than non-submersible heaters. This is because they need to be able to heat a larger volume of water.

How Much Electricity Does an Aquarium Heater Use?

The average aquarium heater uses between 2 and 10 watts of electricity. The amount of electricity your aquarium heater uses will depend on the size and type of heater you have. If you have a small aquarium, you can expect your heater to use less electricity than a large aquarium. The type of heater you have will also affect how much electricity it uses. Some heaters are more energy-efficient than others.

If you’re wondering how much your aquarium heater will cost you in terms of your monthly electric bill, it’s hard to say without knowing the specifics of your situation. The size of your aquarium, the type of heater you have, and the temperature you keep your aquarium at will all play a role in determining the cost. However, as a general rule of thumb, you can expect your aquarium heater to add about $10 to your monthly electric bill.

Which Aquarium Heater is Best?

There are many factors to consider when choosing an aquarium heater. The most important considerations include the size of your aquarium, your fish type, and your budget.

You may not need a very powerful heater if you have a small aquarium. A smaller aquarium heater will be less expensive and take up less space. However, ensuring that the heater you choose can maintain the proper temperature for your fish is important.

If you have a large aquarium, you will need a more powerful heater. A larger aquarium heater will be more expensive, but it can maintain the proper temperature for your fish.

The type of fish you have will also affect the type of heater you need. You will need a heater to maintain a warm temperature if you have tropical fish. You will need a heater to maintain a cool temperature if you have cold water fish.

Finally, you need to consider your budget when choosing an aquarium heater. Heaters range in price from very affordable to very expensive. It would be best to decide how much you will spend on an aquarium heater before you start shopping.

Considering these factors, you can narrow your choices and find the best aquarium heater for your needs.

Where Should I Put The Heater in My Aquarium?

There are a few things to consider when placing your aquarium heater. First, you’ll want to ensure the heater is not close to any air vents or other draft sources. Second, you’ll want to place the heater near the center of the aquarium so that the heat can be evenly distributed throughout the tank. Lastly, it’s crucial to have a thermometer in the aquarium to monitor the water temperature and ensure the heater is working correctly. Following these simple tips ensures that your fish will stay happy and healthy in their new home.

How Can I Keep My Aquarium Warm Without a Heater?

There are a few different ways that you can keep your aquarium warm without using a heater. One way is to place your aquarium in a sunny spot in your home. Another way is to use a heat lamp to warm your fish. You can also purchase an aquarium blanket or cover to help insulate the tank and retain heat.

What Size Heater Do I Need For a 30 Gallon Aquarium?

This is a common question that people have when they are setting up their aquarium. The answer can vary depending on several factors, but there are some general guidelines you can follow.

First, you must determine the minimum temperature your fish can tolerate. This information can be found on the back of the fish food bag or in a fish care book. Once you know this, you can select a heater to maintain the water at this temperature.

Next, you need to consider the wattage of the heater. A good rule of thumb is to use a heater with a wattage twice the size of your aquarium. So, for a 30-gallon aquarium, you would need a 60-watt heater.

Finally, you need to consider the type of heater you want to use. There are two main types of heaters: submersible and non-submersible. Submersible heaters are submerged in the water and are more efficient at heating the water. Non-submersible heaters are placed outside of the aquarium and can be less efficient.

Now that you know the basics of choosing a heater for your aquarium, you can select the one that is right for your needs.