Editor's Choice - Our Favorite MarineLand Aquarium Heaters

1. Marineland Precision Heater for Saltwater or Freshwater Aquariums

User Ratings: 64 17

MarineLand ML90652 First Impressions

"There was only~0."

No biggie, but annoying nonetheless. My heater is fully submerged underwater and works perfectly fine. The controller is easy to use, very accurate and reliable. I have had to turn the dial to about 78-79 for the tank to stay around 76 degrees. Easy enough to let it run all the time. I waited a little bit to write the review so it could be accurate. I have had to turn the dial to about 78-79 for the tank to stay around 76 degrees.

  • Marineland Precision Heater for Saltwater or Freshwater Aquariums
  • This 200 watt heater is for aquariums up to 55 gallons. Adjustable temperature dial allows you to set the temperature 1 degree with every click.
  • Thermal Switch automatically turns off as temperature rises above an internal preset and turns back on once it cools down.
  • The advanced heating element contains a mica core surrounded by a mesh heating element for superior heat transfer with enhanced durability
  • Advanced mounting bracket securely attaches to glass and provides 3 window positions to view the temperature display
  • Easy to view sliding scale tells the exact temperature setting. Top dial view shows the setting from an additional location.
  • Manufacture: Marineland
  • Product Dimensions: 3.94 x 1.63 x 14.81 inches; 10.4 Ounces
  • Editor's Impressions Of The MarineLand ML90652
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

MarineLand ML90652 Final Thoughts

"I like the size."

Once I opened the box i noticed the quality of the construction. The red light means it's off, blue light means the temperature is constant. My fish likes to get close to it and he has never been hurt by it. My fish likes to get close to it and he has never been hurt by it. They shipped us the upgraded version that also heats! Ick for instance detaches from fish at 86 degrees and dies at 89. Also I like how it shows both the current temperature and the set temperature.

Overall Score
4.0


(1306 Points)

2. Teco Tank TK-500 1/6 HP Aquarium Chiller

Teco US T143132 First Impressions

"I angled it."

The temperature has been holding all day, even in a colder room. The suction cups are large, high quality and seem to stick great. The temperature lights up so it's very easy to read. I like the fact that it comes with a digital thermometer. I bought a similar one at the pet store and it barely worked. I have it set to 81F to get a 77F water temp. The temperature lights up so it's very easy to read.

  • Teco Tank TK-500 1/6 HP Aquarium Chiller
  • For Typical Consumer Aquarium Sizes up to 130 Gallons
  • Built-in Heater, Rotatable Top Exhaust Conveyor and Magnetically-Affixed Filter Screen
  • Intuitive and Accurate Digital Thermostat Controller (ºF or ºC)
  • 1/6 Horsepower Motor and 450 Watts of Cooling Capacity
  • Made in Italy, 2-Year Limited Warranty
  • Manufacture: TECO Refrigeration Technologies, S.r.l.
  • Product Dimensions: 12.2 x 12.2 x 16.38 inches; 36.38 Pounds
  • Editor's Impressions Of The Teco US T143132
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Teco US T143132 Final Thoughts

"Will buy again."

I use a 50 for a 5 gal and a 10 gal tank. I love the heater otherwise, but I'm afraid some water has gotten inside the heater. Keeps the temperature within 1 degree of what you set it to at all times. I have a 10gallon tank that was at 72 degrees. I have 3 of the Fluval heaters, in various sizes. I left seller feedback yesterday but have yet to hear from the seller. You program it for temperature you want your tank to be.

Overall Score
4.0


(1 Points)

3. PGFUNNY Aquarium Heater, Adjustable LED Digital Temperature Display Smart Thermostat Betta Fish Heat...

User Ratings: 63 15

PGFUNNY First Impressions

"FIVE STARS!"

It is safe and dependable and comes with a one year warranty. I like the fact that it comes with a digital thermometer. Once attached to the tank wall I've had no issues with it coming off. I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. Maintains it well except when the weather is already warm then it over heats it. I'm not a big fan of the big glass tubes. Would be great to be able to tune that to.

  • PGFUNNY Aquarium Heater, Adjustable LED Digital Temperature Display Smart Thermostat Betta Fish Heater, for Betta Tank Heater with Protective Guard
  • 【Fully Automatic Temperature Control Chip】Heater for betta fish have a automatic thermostat function, when water temperature reaches to specified temperature value, heater will automatically stop heating, when water temperature is lower than the set temperature, heater will automatically start heating.
  • 【Water shortage protection】During its heating time, the small aquarium heater must be 100% submerged into the water. This heater automatically shut itself off once it remove from water which ensures the safety of your pet fish.when fully in water again it will return to normal work again
  • 【Digital Display】With led display on the midle of the heater front side, Long press on fish tank heater switch to switch between Fahrenheit / Celsius display. External temperature setting avoids getting hands wet, digital LED display shows real time water temperature. Heating temperature range from 68 to 94°F.
  • 【Suitable for aquarium pets】: Betta Heater Suitable for all kinds of aquarium pets, betta fish, tropical fish, goldfish, ornamental fish and turtles, can work in both brine and fresh water. All shapes and materials betta tank, whether it is glass or plastic, all can be used.
  • 【CE Certification】: The aquarium thermometer made by heat resistant ABS housing, sandy quartz filler and MCH Alumina ceramic heating system, anti explosion & cracking, keep your fish from scalding.This product have certificated by CE, ROHS, FCC certifications.
  • Manufacture: PGFUNNY
  • Editor's Impressions Of The PGFUNNY
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

PGFUNNY Final Thoughts

"And I am glad I did."

--The cylinder or rod diameter is bigger. It's pretty noticeable, but I don't really care. This is only day one though, so I shall keep an eye one it. I wouldn't buy any other heater, unless one of these stops working. The heater is being used in a 40 gallon breeder. I emailed the email it says to and told them. I used to try those other cheap heaters sold on amazon.

Overall Score
4.1


(192 Points)

4. hygger Submersible Aquarium Heater,100W /300W Adjustable Fish Tank Heater with External Temp Control...

User Ratings: 73 9

hygger First Impressions

"5 gallons."

I have it set to 81F to get a 77F water temp. I dont know, and havent tried just yet. Easy enough to let it run all the time. The temperature gauge is fairly accurate in my 55 gallon tank. It took about an hour to reach 80f, which is fairly quick. I love the heater otherwise, but I'm afraid some water has gotten inside the heater. It's only been set up for a month we'll see how well it does in a few months.

  • hygger Submersible Aquarium Heater,100W /300W Adjustable Fish Tank Heater with External Temp Controller Auto Thermostat Heater for 10-60 Gallon Saltwater and Freshwater Tank
  • 300W AQUARIUM HEATER: For 30 to 60 gallon fish tanks, with a precision probe inside, it is possible to monitor heat more efficiently and avoid "cooking fish", and it can be fixed on the inner glass of the aquarium with suction cup without disturbing the fish.
  • TEMPERATURE ADJUSTMENT: Set the temperature on the adjustment wheel outside the aquarium. The adjustment knob of submersible aquarium heater can select the temperature between 75°F and 91°F , Temp Control Accuracy:±2℉,Temp Accuracy:±1℉, without worrying about hand wetness.
  • FULLY AUTOMATIC CONTROL: When the water temperature is higher than the set temperature value, the fish tank heater will automatically stop; if the water temperature is lower than the set temperature, the heater will automatically start heating (error is 1.5-2°F).
  • OVERHEAT PROTECTION: When the water temperature is over 97°F, the aquarium heater will auto shut down. If a fault occurs, the backup circuit in the controller will work to shut it down. It provides a warm and sustainable environment while keeping a safe life for fish.
  • RELIABLE QUALITY: Use milky quartz material, can resist a high temp of 1800 fahrenheit degree, excellent in explosion-proof and shatter-resistant, to prevent burns on your pet. Fish tank water Heater is suitable for saltwater and freshwater, fast heating, corrosion resistance and oxidation resistance.
  • Manufacture: hygger
  • Editor's Impressions Of The hygger
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger Final Thoughts

"Very pleased so far."

There is no protection from it banging on the glass tank. There is a misconception on the internet that the heater isn't fully submersible. --The cylinder or rod diameter is bigger. They shipped us the upgraded version that also heats! All seem to vary between 1-2 degrees of each other which doesn't concern me much. I like to keep it at 72 and from my thermometer it is reading at exactly 72. There is no protection from it banging on the glass tank.

Overall Score
4.3


(135 Points)

5. boxtech Aquarium Heater, 50W/100W/300W Explosion Proof Submersible Thermostat with Adjust Knob and 2...

User Ratings: 69 8

boxtech First Impressions

"Best addition to my tank."

There is no protection from it banging on the glass tank. Sometimes you may have to tinker around with the dial. I got this heater for my 55 gallon aquarium. Awesome chiller, perfect for Hydroponics. The heater is easy; turn the dial to set temp and plug in. 210 gallon ones and one 90 gallon bow front tank. I got the 200W variant for my 54 gallon corner tank that's housing goldfish.

  • boxtech Aquarium Heater, 50W/100W/300W Explosion Proof Submersible Thermostat with Adjust Knob and 2 Suction Cups Suit Marine Saltwater and Freshwater
  • Fish Tank Heater: 300W aquarium heaters suit for 30 - 80 Gallon fish tank. Voltage:110V, power cord is 5.57ft, Max deep water immersion 20 inch/1.7 FT
  • Correct installation: Stick the heater vertical onto the tank side near the water intake or on the way of water flow.(This way the heater can quickly sense the water temperature and make adjustments automatically), Keep the aquarium heater fully submerged in water
  • Fully Automatic Control: Design with External Temperature Controller, Temperature Range is 68 ºF-90 ºF, when water temperature achieve the setting temperature, heater will automatically stop heating, when water temperature is lower than the setting temperature, heater will automatically start heating
  • Quartz Tube Safety Protection: Made of heat-resistant milky quartz Glass and UL-Approved Power Cord, Controller IPX4, Heater IPX8 that make it pretty shatter-proof and Explosion-proof and prevents electricity leakage, service life can be 3 years or more
  • Notice Please: Before you clean the aquarium or change water, pls must cut off the heater power, after 10 minute cooling then take out the heater and regularly clean the scale on the heater
  • Temperature Control: Design with External Temperature Controller, Temperature Range is 68ºF-90ºF, when water temperature achieve the setting temperature, heater will automatically stop heating, when water temperature is lower than the setting temperature, heater will automatically start heating.
  • Voltage:110 V Frequency: 50HZ
  • Led Indicator Light:When it working, the indicator light is red.
  • Manufacture: BOXTECH
  • Product Dimensions: 13.39 x 1.97 x 3.54 inches; 11.99 Ounces
  • Editor's Impressions Of The boxtech
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

boxtech Final Thoughts

"There was only~0."

You don't have to worry about wide temperature swings with this unit. I was amazed how quickly I got to my temperature I need it 78 degrees. This has been in my fish tank for a few months now and it's been absolutely perfect! You don't have to worry about wide temperature swings with this unit. It is a bonus that the heater is titanium. I have it set to 81F to get a 77F water temp. My fish likes to get close to it and he has never been hurt by it.

Overall Score
4.3


(523 Points)

6. Orlushy Mini Aquarium Heater 50W 100W 150W,Small Fish Tank Heater with LED Digital Temperature Displ...

User Ratings: 71 7

Orlushy First Impressions

"Very pleased so far."

Also were nice along the whole process. I have a 10gallon tank that was at 72 degrees. We would consider a replacement and then we would return the defective unit. I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. The temperature difference was very minor. --Temperature adjustment labeling is on top rather than on the rod. I waited a little bit to write the review so it could be accurate.

  • Orlushy Mini Aquarium Heater 50W 100W 150W,Small Fish Tank Heater with LED Digital Temperature Display and External Temperature Controller for Betta Frogs Newts Turtles
  • ★ 50W Submersible Aquarium Heater is Suitable for 3-10 Gallon.Temperature range: 65°F~93°F(18°C~34°C), power cord is 5 FT.
  • ★ LED Display Design: LED digital display, External temperature controller,easy to use and Safety.
  • ★ The Digital Smart Aquarium Heater is a heater and thermometer combined into one, eliminating the need for more equipment in smaller tanks.
  • ★ Please be sure that the heater needs to be completely sunk into water, horizontal or vertical fixed in the water cycle better place, and let the working light can be seen as clear as possible.
  • ★ Applicable for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems
  • Manufacture: Nova pet supplies co.LTD
  • Product Dimensions: 4 x 2.75 x 1.6 inches; 8.78 Ounces
  • Editor's Impressions Of The Orlushy
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Orlushy Final Thoughts

"Quality was amazing."

It would stick out of my 30 g wide tank if I were to put it vertical. Well worth the money the first one I bought still works great. We received the chiller promptly and put it into use. But I am single and don't have to worry about this. Or better yet, conceal it to the back corner. If the water runs low or air gets in the heater shuts off. I'm in the process of setting up for tanks.

Overall Score
4.4


(2168 Points)

7. hygger 500W 800W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital...

User Ratings: 74 10

hygger First Impressions

"Excellent build quality."

Come on Fluval, expect better from you. I have only had minor problems with the suction cups. The bonus digital thermometer it came with has been super helpful, and is accurate. This is a great heater that is very easy to set up and program. All seem to vary between 1-2 degrees of each other which doesn't concern me much. But my guys don't read them and don't listen! Two inches above that is a waterline for maximum.

  • hygger 500W 800W Aquarium Heater, Submersible Fish Tank Water Heater with External Color LED Digital Temperature Controller, Fast Heating for 60~180 Gallon for Saltwater and Freshwater
  • LED DIGITAL DISPLAY CONTROLLER: ① Displays real-time water temperature or set temperature, three-digit display, water temperature display accurate to 0.1 °F, easy to read. ② 4 kinds of work instructions - Working/Malfunction/ Thermostatic/ Out of water, easy to understand. ③ Child Lock"KEY": need to touch 3 seconds to set the temperature.
  • RAPID HEATING: Fastest 5 seconds warming, with intelligent circuit board, the outside is wrapped with aluminum material to accelerate heat conduction and protection. Automatically reduces power when approaching the set temperature, fully utilizes thermal energy inertia to smoothly reach the set temperature, saving energy.
  • INTELLIGENT THERMOSTAT: Over-temperature protection prevents "cooking fish". When the water temp exceeds about 93.5 °F, start alternately flashing EE fault code; and over 97℉, the heater will stop heating automatically. When the water temp cool down to 93℉, the heater will start working automatically. In addition, it has a power-off memory function and no need to set it again.
  • ANTI-DRY PROTECTION: When the heating rod is exposed to air, display ER fault code and the heater will shut off automatically. When the heating rod is completely immersed in water, it will start working automatically. Effectively extend the service life.
  • HIGH-QUALITY MATERIALS: Built-in dual temperature probe, real-time monitoring of water temperature, temperature accuracy of ± 1 °F; high temperature resistant ABS material, no deformation and no softening, explosion-proof and anti-corrosion, no leakage of electricity. Strong suction cup bracket, can stably fix the heater in every corner of the fish tank.
  • Manufacture: hygger
  • Editor's Impressions Of The hygger
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger Final Thoughts

"I bought the 7."

The red light means it's off, blue light means the temperature is constant. --The cylinder or rod diameter is bigger. I think it works well to not stand out like other heaters. This heater is NOT fully submersible. This this is amazing and is worth the money. Sometimes you may have to tinker around with the dial. For Discus you need warm and accurate heater and this seems to do the trick.

Overall Score
4.3


(234 Points)

8. ViaAqua 300-Watt Quartz Glass Submersible Heater with Built-In Thermostat

User Ratings: 73 5

ViaAqua VA 300Q First Impressions

"Highly recommended."

The temperature lights up so it's very easy to read. The heater is super thin and the reflective surface is interesting. Was very impressed with the quality of this heater. The line is there due to regulations in certain countries. They shipped us the upgraded version that also heats! I use this little heater for my 10 gallon quarantine tank. I used to try those other cheap heaters sold on amazon.

  • ViaAqua 300-Watt Quartz Glass Submersible Heater with Built-In Thermostat
  • High quality quartz glass
  • Fully-submerisble
  • Visible temperature setting
  • For use in fresh or saltwater aquariums
  • Manufacture: Commodity Axis
  • Product Dimensions: 1.13 x 1.13 x 14.8 inches; 10.88 Ounces
  • Editor's Impressions Of The ViaAqua VA 300Q
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

ViaAqua VA 300Q Final Thoughts

"Great concept."

It took about an hour to reach 80f, which is fairly quick. Those turned out to be a hit and miss. If the blue light is flashing it means the heater is not fully submersible. I got the 200W variant for my 54 gallon corner tank that's housing goldfish. I have only had minor problems with the suction cups. I have a 10gallon tank that was at 72 degrees. I think it works well to not stand out like other heaters.

Overall Score
4.5


(1104 Points)

9. YukiHalu Small Size Submersible Aquarium Heater, 1℉ Accuracy, Mini Fish Tank Heater 50W 100W with ...

User Ratings: 70

YukiHalu First Impressions

"There was only~0."

It is a bonus that the heater is titanium. No biggie, but annoying nonetheless. I have a 10gallon tank that was at 72 degrees. I had a thermometer on opposite side of tank and the heater was dead on true. The heater protector was very heavy plastic and slim lined which is great. They shipped us the upgraded version that also heats! I like the fact that it comes with a digital thermometer.

  • YukiHalu Small Size Submersible Aquarium Heater, 1℉ Accuracy, Mini Fish Tank Heater 50W 100W with Built-in Thermometer, Dual LED Temperature Display, External Temperature Controller
  • 【Compact and Quiet, 50W Heater】 YukiHalu small aquarium heater is suitable for 1~10 gallon mini fish tanks. Much more compact than a comparable 50W glass tube heater and takes less space in your tank, easy to hide in the tank. Temperature can be accurately adjusted from 64 to 93°F. This heater suitable for both saltwater and freshwater. The rated voltage is 100-130V.
  • 【1℉ Accuracy & Intelligent Frequency Conversion】Thanks to advanced Intelligent Frequency Conversion Technology, the temperature accuracy is up to 1℉. If the temperature is lower than the target value of 0.2°F, the heater works at a Variable frequency to keep the temperature constant. If the water temperature is lower than the target temperature of 1°F, the heater will work at full power. Compare to traditional heater, this new technology will cut down 49% electricity bill for you.
  • 【Easy to adjust the temperature without wet your hands】The heater is its external controller to set the temp instead of dipping your hands into your tank to rotate a dial found on most glass tube heaters. Here you can change the temperature as many times as you like without having to ever wet your hands or contaminating your tank. 3 Strong suction cups, easy to install.
  • 【Easy to Read & Built-in Thermometer】Dual built-in temperature sensor. Dual LED display. The water temperature will be displayed on both the heater and the external temperature controller in real time.
  • 【Safety & 4 Protections】Electric Leakage protection / Overheating protection / Dry running protection / Out of water protection. Sturdy engineering plastic shield, scalding resistant and explosion resistant. 30 days full refund, 12-months warranty.
  • Press and hold the button in external controller for more than 3 seconds to unlock the key
  • Short-press the button once, the temperature number will increase 1℉. Keep short-pressing the button until the target temperature is reached. It is a cyclic adjustment
  • Built-in Thermometer
  • Manufacture: YukiHalu
  • Product Dimensions: 2.7 x 3.3 x 1.2 inches; 9.52 Ounces
  • Editor's Impressions Of The YukiHalu
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

YukiHalu Final Thoughts

"They contacted me."

The suction cups are large, high quality and seem to stick great. It is a bonus that the heater is titanium. Per my thermometers, they are all staying constant. Would be great to be able to tune that to. I left seller feedback yesterday but have yet to hear from the seller. The heater protector was very heavy plastic and slim lined which is great. It does blend well in some setups and may look bulky in others.

Overall Score
4.6


(10 Points)

10. hygger 200W Aquarium Heater with LED Display Controller Submersible Fish Tank Heater for 15-30 Gallo...

User Ratings: 73 9

hygger HG-925 First Impressions

"Works fine."

I went ahead and went with the the larger 300W for my 45 gallon. It comes with a hanging kit and can be secured on the edge of the tank. I got a hold of Amazon, who put me in touch with the seller. Very easy to install and the adjustable temperature gauge is pretty accurate. Two inches above that is a waterline for maximum. This is a great heater that is very easy to set up and program. The temperature difference was very minor.

  • hygger 200W Aquarium Heater with LED Display Controller Submersible Fish Tank Heater for 15-30 Gallon
  • This fully submersible aquarium heater enables memory function and over heat protection. Auto shut off when over-heats, resets when it cools down
  • Made with premium quartz and double sealed by black protective guard, this fish tank heater is resistant to corrosion, and protect fish and other livestocks from punching and scalding
  • Build-in external IC temp controller, easy to read blue LED digital number shows real time water temperature. Heat indicator lights on red when fish heater start to heat and turns in yellow once it reach set temperature. Temp accuracy is +/- 1°F
  • Easy to set temperature without getting hands wet. Temperature can be precisely adjusted from 61 to 90°F (16°C ~ 32°C). Just press set button to desired temperature, it blinks 3 seconds and begins to work
  • 200 watt aquarium heater, voltage 110-120 V, heater rod 6.3 inches long, suitable for tank capacity 15-30 gallon freshwater and saltwater aquariums
  • IP68 100% Waterproof, Fully Submersible
  • Dual Protection - Durable Quartz Tube, resistant to corrosion; Double sealed material and protective container for scald preventing and anti punching Accurate temperature control from 61°F to 90°F (16°C ~ 32°C)
  • Easy to read blue LED digital display shows water temperature
  • Manufacture: hygger
  • Editor's Impressions Of The hygger HG-925
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger HG-925 Final Thoughts

"Overall happy."

At this time I highly recommend this product. I wouldn't buy any other heater, unless one of these stops working. The controller is easy to use, very accurate and reliable. Personally for me the housing doesn't bother me. So if you set it to 78 degrees, the heater will not kick on until it reads 76. --Temperature adjustment labeling is on top rather than on the rod. The heater is being used in a 40 gallon breeder.

Overall Score
4.3


(31 Points)

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