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. Hydor Submersible Glass Aquarium Heater - Original Theo

User Ratings: 56 18

Hydor T11702 First Impressions

"Highly recommended."

This has been in my fish tank for a few months now and it's been absolutely perfect! Checked the accuracy of the heater with an infrared thermometer. We would consider a replacement and then we would return the defective unit. So far I like it setup was super easy. I adjusted the set temperature a little lower to be more in the range I wanted. Sometimes it gets outside of it's ability to cool but only within a few degrees. It's only been set up for a month we'll see how well it does in a few months.

  • Hydor Submersible Glass Aquarium Heater - Original Theo
  • High resistance - the first shatter proof heater
  • Shock resistant
  • Position vertical, horizontal and completely submerged
  • Graduated scale for precise maintenance of set temperature
  • No damage in case of running dry
  • Manufacture: Hydor USA, Inc.
  • Product Dimensions: 3.5 x 2 x 10 inches; 8 Ounces
  • Editor's Impressions Of The Hydor T11702
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Hydor T11702 Final Thoughts

"I like the size."

Was very impressed with the quality of this heater. It took me only two tries to get it to the correct temperature. Easy enough to let it run all the time. I dont know, and havent tried just yet. Beware, but we are hoping for a good outcome! Also were nice along the whole process. I wouldn't buy any other heater, unless one of these stops working.

Overall Score
3.8


(1809 Points)

3. hygger Fast Heating Titanium Aquarium Heater with LED Digital Temp Controller 500W 800W Submersible ...

User Ratings: 75 8

hygger First Impressions

"Great concept."

The temperature lights up so it's very easy to read. Keeps the temperature within 1 degree of what you set it to at all times. I'm in the process of setting up for tanks. Was very impressed with the quality of this heater. I have a 10gallon tank that was at 72 degrees. I will be ordering more of these in the future. It took me a few days slowly turning the dial up to finally get it where I wanted.

  • hygger Fast Heating Titanium Aquarium Heater with LED Digital Temp Controller 500W 800W Submersible Fish Heater for 60-180 Gallon Freshwater Marine Tank
  • 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 titanium and double sealed by black protective guard, this fish tank heater is resistant to explosion and 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. Temp accuracy is +/- 1°F.
  • Easy to set temperature without getting hands wet. Build in hand button, Keep pushing the button. It will cycle through all the set temperatures. Temperature can be precisely adjusted from 70 to 94°F
  • 800W aquarium heater, voltage 110-120V, suitable for tank capactiy 120-180 gallon freshwater and marine water aquariums
  • Do not bury under gravel
  • Always keep heater rod fully submerged
  • IP68 100% Waterproof, Fully Submersible
  • Manufacture: hygger
  • Editor's Impressions Of The hygger
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger Final Thoughts

"This heater is excellent."

I was worried about the quality but I am thoroughly impressed with this heater! This is a powerful heater that holds temperature very well. This is a powerful heater that holds temperature very well. Also were nice along the whole process. There is no protection from it banging on the glass tank. There is no protection from it banging on the glass tank. We received the chiller promptly and put it into use.

Overall Score
4.4


(400 Points)

4. 300w 150w 50w Submersible Aquarium Heater Auto Thermostat Heater with Suction,LED Small Mini Tempera...

User Ratings: 59 16

FTSTC First Impressions

"One word of caution."

The temperature gauge is fairly accurate in my 55 gallon tank. 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. I had a thermometer on opposite side of tank and the heater was dead on true. This is a powerful heater that holds temperature very well. Keeps the water consistent and it's easy to adjust! I confirm it with my cooking digital probe thermometer.

  • 300w 150w 50w Submersible Aquarium Heater Auto Thermostat Heater with Suction,LED Small Mini Temperature Display Aquarium Fish Tank Heater for Fish Tank Water
  • UPGRADED MORE DURABLE VERSION: Provided the best warm area to your fish in the cold winter.Keeps improving best aquarium heater for your fish tank, after collecting so many comments from customers, we upgrade its function and life time, now it works more continuously and accurately.
  • MORE SAFETY & HIGH QUALITY: This upgraded aquarium heater now updated for more durable Quartz Glass, which is pretty shatter-proof and blast-proof and prevents electricity leakage. And the stronger protective container updated for Anti-melting anti punching double sealed material, it is scald-preventing for your pets and your safety.
  • FREE THERMOMETER: This fish tank heater come with an extra thermometer to show the accurate tank temperature to avoid overheat or freeze. It provide a constant warm environment for your pet fish to stay healthy, suitable both for fresh and salt water.
  • TEMPERATURE CONTROL: Aquarium heater works in intermittent operation mode and will automatically turn on/off to achieve the setting temperature constantly and stably. Setting the temperature by the red knob on the top with range is 64°F - 94°F.High accuracy(±1°F)
  • APPLICABLE TANK SIZE: Our submersible aquarium heaters are perfect designed for different size tank, 50W for 5-10 gallon; 100W for 10-30 gallon; 300W for 30-85 gallon, please choose the suitable power for your tank. And we also recommend to position it near a strong water flow, the outlet of a power filter is ideal, so that the whole aquarium are in the same temperature.
  • Manufacture: FTSTC
  • Batteries: 1 LR44 batteries required. (included)
  • Editor's Impressions Of The FTSTC
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

FTSTC Final Thoughts

"I'll try once more."

The heater is easy; turn the dial to set temp and plug in. We wish the controls were available in Farenheit also to make things a little easier. I was worried about the quality but I am thoroughly impressed with this heater! I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. When i installed them, i let them sit in the tanks without power for 6-24 hours. This is a great heater that is very easy to set up and program. Would be great to be able to tune that to.

Overall Score
3.9


(1234 Points)

5. YCTECH Submersible Aquarium Heater with LED Water Thermometers for 1-35 Gallon Tropical Fish Tank, S...

User Ratings: 62 5

YCTECH First Impressions

"Amazing customer service."

Once attached to the tank wall I've had no issues with it coming off. But I am single and don't have to worry about this. The cover over the heating tubes is great, the turtles claws can't damage the tube. And kids love pushing all sorts of buttons. The line is there due to regulations in certain countries. We wish the controls were available in Farenheit also to make things a little easier. Those turned out to be a hit and miss.

  • YCTECH Submersible Aquarium Heater with LED Water Thermometers for 1-35 Gallon Tropical Fish Tank, Safe Adjustable Temperature Control, Electronic Water Heater Thermostat (50W / 75W / 100W / 200W)
  • 【Temperature Range】 15°C~34°C (59°F~93°F),it is suitable for fresh water and sea water fish tanks of ★ 1-10 gallons ★, provide comfortable environment for your beloved tropical fish ★ Submersible Use ONLY ★
  • 【 Smart Temperature Control 】 the micro chip will automatically keep the water in the fish tank at the temperature you set and keep it stable
  • 【Easy To Use】press the button of the thermostat to set the temperature,the temperature will changer within the cyclic temperature range ,just stop when you set it right
  • 【Power-Off Memory Function】 the aquarium heater will automatically remember the temperature you set before power off,you don’t have to set the temperature every time
  • 【Excellent service】24 hours customer service online, any questions please contact us at any time.If you are not satisfy with this Aquarium Heater for any reason in 30 days, we will refund the cost. you can return the new one for free if there is problem within a year.
  • Manufacture: CHOSION
  • Product Dimensions: 2.5 x 1.6 x 3.7 inches; 8.78 Ounces
  • Editor's Impressions Of The YCTECH
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

YCTECH Final Thoughts

"I bought the 7."

I got the 200W variant for my 54 gallon corner tank that's housing goldfish. When i installed them, i let them sit in the tanks without power for 6-24 hours. This little heater is perfect; this is our third purchase of the same heater. So far I like it setup was super easy. They promptly fixed the issue without any delays or drama. I hope these suction cups work very well. The heater is easy; turn the dial to set temp and plug in.

Overall Score
4.2


(79 Points)

6. Aquatop Quartz Glass Submersible Heaters (50W-300W)

User Ratings: 67 6

AquaTop GH-50W First Impressions

"Works as intended."

My fish likes to get close to it and he has never been hurt by it. You don't have to worry about wide temperature swings with this unit. I like to keep it at 72 and from my thermometer it is reading at exactly 72. This product came in the nick of time! I recieved this product without the instructions or the added thermometer. It's pretty noticeable, but I don't really care. --The heater itself is a bit shorter if your tank is a short one.

  • Aquatop Quartz Glass Submersible Heaters (50W-300W)
  • Tank capacity: up to 13-gallon
  • Voltage/freq: 110-120volt/60hertz
  • Power: 50-watt
  • Easy to use temperature setting
  • Fully submersible
  • Manufacture: Aquatop, Inc.
  • Product Dimensions: 9 x 1.5 x 1.5 inches; 10.41 Ounces
  • Editor's Impressions Of The AquaTop GH-50W
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

AquaTop GH-50W Final Thoughts

"Works great."

I'm in the process of setting up for tanks. Also were nice along the whole process. The line is there due to regulations in certain countries. I went ahead and went with the the larger 300W for my 45 gallon. Ick for instance detaches from fish at 86 degrees and dies at 89. This is a great heater that is very easy to set up and program. We would consider a replacement and then we would return the defective unit.

Overall Score
4.4


(235 Points)

7. Inkbird 1200 Watts Digital Temperature Controller Aquarium Thermostat for Aquarium Heater, with Wate...

User Ratings: 73 6

Inkbird First Impressions

"I like it."

Also were nice along the whole process. Those turned out to be a hit and miss. This is only day one though, so I shall keep an eye one it. Keeps the water consistent and it's easy to adjust! I like how the heater is constructed. I emailed the email it says to and told them. I love the heater otherwise, but I'm afraid some water has gotten inside the heater.

  • Inkbird 1200 Watts Digital Temperature Controller Aquarium Thermostat for Aquarium Heater, with Waterproof Sensor
  • Wifi & Free APP : Pair the aquarium temperature controller with your phone via 2.4GHz Wi-Fi, the device will alarm if there are exceptions. And all exceptions will be updated to the APP, the app will push notifications to remind you.(APP: ☞InkbirdSmart)
  • Dual Protection : The wifi temperature controller is equipped with 2 relays(current relay) to ensure that the power can be turned off under any abnormal circumstances, will protect your fish from being hurt by overheated water
  • Continous Heating Alarm The heating time can be set according to your needs from 1 hour to 72 hours. The controller will alarm once the water can not be heated to the setting temperature within the specified time. The temperature setting range is 20.0℃~35.0℃/68.0℉~95.0℉ and the measure temperature range is -40℃~100℃/-40℉~212℉.
  • Easy to use : Plug and Play. The 10A 1200w programmable and prewired aquarium thermostat is compatible with most kinds of heaters, no need to assemble the product yourself, just plug and play.
  • Dual probe for safety :The aquarium heater controller will alarm once the temperature difference between 2 probes is more than 5℉(3℃), and the app will push a notification at the same time.To protect your fish in a more safet environment
  • Manufacture: Inkbird
  • Editor's Impressions Of The Inkbird
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Inkbird Final Thoughts

"So far so good!"

But I am single and don't have to worry about this. The temperatures are pretty accurate. The red light means it's off, blue light means the temperature is constant. I was worried about the quality but I am thoroughly impressed with this heater! When i installed them, i let them sit in the tanks without power for 6-24 hours. This has been in my fish tank for a few months now and it's been absolutely perfect! I use a 50 for a 5 gal and a 10 gal tank.

Overall Score
4.4


(288 Points)

8. Aqueon Preset Heater

User Ratings: 71 7

Aqueon 100106252 First Impressions

"They contacted me."

All seem to vary between 1-2 degrees of each other which doesn't concern me much. I use this little heater for my 10 gallon quarantine tank. This heater warmed it right up and now my Betta and guppies are more active. This product came in the nick of time! You program it for temperature you want your tank to be. After several weeks of running the heater. Beware, but we are hoping for a good outcome!

  • Aqueon Preset Heater
  • Preset to 78 degrees, appropriate for most tropical fish.
  • Fully submersible, shatter-resistant construction
  • Automatic safety shut-off avoids overheating and damage
  • LED indicator light displays when actively heating
  • 1 year warranty
  • 100 watt is recommended for 20 and 30 gallon aquariums
  • Manufacture: Central Garden & Pet
  • Product Dimensions: 3.5 x 1.5 x 7.75 inches; 7.52 Ounces
  • Editor's Impressions Of The Aqueon 100106252
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Aqueon 100106252 Final Thoughts

"Amazing customer service."

The setting always stayed the same. After several weeks of running the heater. Am a totally sold customer and would recommend them to anybody! I hope these suction cups work very well. You don't have to worry about wide temperature swings with this unit. It's pretty noticeable, but I don't really care. It took me only two tries to get it to the correct temperature.

Overall Score
4.4


(764 Points)

9. FEDOUR Adjustable Aquarium Heater with Protective Cover, 30W 50W 60W 120W Submersible Heater Thermos...

User Ratings: 69 4

FEDOUR First Impressions

"Great heater."

The temperature lights up so it's very easy to read. I love the heater otherwise, but I'm afraid some water has gotten inside the heater. At this time I highly recommend this product. I tested it by unplugging and replugging it. Am a totally sold customer and would recommend them to anybody! Once attached to the tank wall I've had no issues with it coming off. If the blue light is flashing it means the heater is not fully submersible.

  • FEDOUR Adjustable Aquarium Heater with Protective Cover, 30W 50W 60W 120W Submersible Heater Thermostat for 5-40Gallon Fish and Turtle Tank
  • More Power and Longer Life: This heater is for 15-40 gallon fish tank, comparing to 100W, this 120W aquarium heater is more powerful and heating the same water in shorten time. Less working time provide longer life.
  • Double Safety Protection: 2mm thickened explosion-proof glass, 33% thicker than normal 1.5mm aquarium heaters, adding a specialized protective cover wrapping the heater tube, more durable and much safer for both human and aquatic creature.
  • Application: 120W suitable for15-40gallon fish tank, suitable for both fresh and marine water, suitable for all kinds of fish, turtle and plants. Size: 24cm in Length.
  • High-precision temperature control system, adjustable temperature ranges from 20°C - 34°C (68°F to 93°F).
  • Complete accessories: An additional stick-on thermometer as a bonus to detect water temp at any time, and an extra suction cup providing for spare. Offering 12 months warranty for the whole heater.
  • Install the suction cups on the heater according to the installation diagram.
  • Please pay more attention to the change of the water temperature during the first week.
  • Manufacture: IBAY
  • Editor's Impressions Of The FEDOUR
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

FEDOUR Final Thoughts

"The accuracy is perfect."

The heater is super thin and the reflective surface is interesting. Once attached to the tank wall I've had no issues with it coming off. It took me a few days slowly turning the dial up to finally get it where I wanted. I went ahead and went with the the larger 300W for my 45 gallon. The line is there due to regulations in certain countries. I confirm it with my cooking digital probe thermometer. I'm in the process of setting up for tanks.

Overall Score
4.4


(113 Points)

10. hygger 500 Watt Aquarium Heater with LED Digital Temperature Controller, Submersible Fish Tank Heate...

User Ratings: 65 11

hygger HG-925 First Impressions

"Perfect heater for my 2."

I am very happy with this purchase. I am very happy with this purchase. I emailed the email it says to and told them. I am very happy with this purchase. No biggie, but annoying nonetheless. When i installed them, i let them sit in the tanks without power for 6-24 hours. But my guys don't read them and don't listen!

  • hygger 500 Watt Aquarium Heater with LED Digital Temperature Controller, Submersible Fish Tank Heater for 60-120 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
  • 500 watt aquarium heater, voltage 110-120V, suitable for tank capactiy 60-120 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

"Highly recommended."

I had a thermometer on opposite side of tank and the heater was dead on true. No biggie, but annoying nonetheless. You program it for temperature you want your tank to be. Sometimes it gets outside of it's ability to cool but only within a few degrees. Two inches above that is a waterline for maximum. I recieved this product without the instructions or the added thermometer. This product came in the nick of time!

Overall Score
4.2


(76 Points)

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