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 [star rating='3.9']
• Quality [star rating='4.1']
• Value For Money [star rating='3']
• Affordability [star rating='4.3']

Here Are Some Other Related Aquarium Heaters

2. PULACO 25W Small Aquarium Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks

User Ratings: 75 7

PULACO PL-168 First Impressions

"5 gallon tank."

I would definitely recommend this product. It just cycles through to 93f and starts over. The setting always stayed the same. The suction cups are large, high quality and seem to stick great. I like to keep it at 72 and from my thermometer it is reading at exactly 72. Keeps the temperature within 1 degree of what you set it to at all times. I am very happy with this purchase.

• PULACO 25W Small Aquarium Betta Heater with Free Thermometer Strip, Under 6 Gallon Fish Tanks
• ★【Betta Heater】This Fish Tank Heater should be 100% submerged into water, Ideal for small glass or acrylic desktop aquariums up 1 to 6 Gallons, not suitable for less than 1 gallon tank.
• ★【Quick and Easy Installation】:Vertical or horizontal placement using, Aquarium heater automatic temperature control 78℉, no need to adjust temperature, easy to operate, fishes happy.
• ★【How it Works】: Plug in, red light turns on, the heater will start working until water temperature up to 78°F, and red light off, then the green light will turn on, heater stop working and keeping constant temperature 78°F. Accuracy：±3°F
• ★【Note】: Do not operate or leave product plugged in when it is outside of water, Children should be use this heater under adult's guidance.
• ★【SATISFACTION GUARANTEED】Our Aquarium Heater is built with durability in mind and safety for every design. In the remote possibility that you’re not satisfied with our product, just contact us, and we will gladly give you a new Aquarium Heater replacement. 12 Month Warranty and 24 Hour Professional After-sales Service.
• Please install and use this heater under rated voltage conditions(110V-120V/60Hz).
• This heater is designed for small fresh/sea water tanks, please do not use it in chemical water or any other heating purpose, it may damage the heater.
• Children should be use this heater under adult's guidance.
• Manufacture: PULACO
• Product Dimensions: 5.5 x 1.2 x 2.7 inches; 4.48 Ounces

• Editor's Impressions Of The PULACO PL-168
• Heat Quality [star rating='5']
• Quality [star rating='3.7']
• Value For Money [star rating='3.5']
• Affordability [star rating='4.7']

3. Eheim Thermocontrol e300 Heater

User Ratings: 89

Eheim AEH3639090 First Impressions

"Until the next time."

Once I opened the box i noticed the quality of the construction. I got this heater for my 55 gallon aquarium. Very easy to install and the adjustable temperature gauge is pretty accurate. You don't have to worry about wide temperature swings with this unit. Awesome chiller, perfect for Hydroponics. I emailed the email it says to and told them. This heater warmed it right up and now my Betta and guppies are more active.

• Eheim Thermocontrol e300 Heater
• Advantages of the EHEIM control heater thermocontrol-e Precise temperature adjustment from 68°F to 89°F (20 to 32°C) No readjustment necessary Control accuracy 0. 5 °C The heat is kept constant Control lamp indicates the heating function (red: heating up; green: temperature reached) Fully submersible (waterproof) With dry-running protection (Thermo Safety Control) Glass coating increases the heating surface and ensures optimum, even heat output Including double suction holder Many sizes for aquariums from 5 to 300 gallons Suitable for fresh and marine water Highest safety and reliability Made in Germany Specifications Wattage: 300W Temperature setting range: 68°F to 89°F (20 to 32°C) Aquarium Size (approx. ) 159-265 Gallons Height: 19. 5" Power Cord Length: 5. 5'
• Item Package Height: 1.97
• Item Package Length: 2.56
• Item Package Width: 23.03
• Manufacture: Eheim

• Editor's Impressions Of The Eheim AEH3639090
• Heat Quality [star rating='4.3']
• Quality [star rating='4']
• Value For Money [star rating='5']
• Affordability [star rating='4.1']

4. Eheim Thermocontrol e100 Heater

Eheim AEH3634090 First Impressions

"The seller was wonderful."

So when I first received it it didn't work and I was very disappointed. Was very impressed with the quality of this heater. The red light means it's off, blue light means the temperature is constant. Temperature is slightly off by running a little warmer. I have 3 of the Fluval heaters, in various sizes. I wouldn't buy any other heater, unless one of these stops working. For Discus you need warm and accurate heater and this seems to do the trick.

• Eheim Thermocontrol e100 Heater
• With the EHEIM thermocontrol-e heating element your fish get the right temperature even more precisely - in every aquarium. The EHEIM thermocontrol aquarium control heater is a further development of the legendary heating element and thermocontrol-e is the latest electronically controlled variant. The obvious ideas are often the best. This also applies to the aquarium heating element. It is simply hung in the water and heats it up. The principle is the same as it was decades ago. But in the meantime the EHEIM controller heater has become an ultra-modern thermal device. The temperature can be set precisely from 68°F to 89°F. It is measured even more precisely and kept more constant by the electronics with a control accuracy of 0. 5 °C. The heat is kept constant with an LED that indicates the heating function. The coating on the heater is made of special laboratory glass that increases the heating surface, serves as a heat shield and ensures even heat emission. There are no cracks and hairline cracks through which condensation water could pass. It is impact resistant. And even extreme temperature fluctuations, such as those that may occur during water changes, do not affect this glass. The heater is absolutely waterproof, can be fully immersed, has a dry run protection (Thermo Safety Control) and is suitable for fresh and marine water. Advantages of the EHEIM control heater thermocontrol-e Precise temperature adjustment from 68°F to 89°F (20 to 32°C) No readjustment necessary Control accuracy 0. 5 °C The heat is kept constant Control lamp indicates the heating function (red: heating up; green: temperature reached) Fully submersible (waterproof) With dry-running protection (Thermo Safety Control) Glass coating increases the heating surface and ensures optimum, even heat output Including double suction holder Many sizes for aquariums from 5 to 300 gallons Suitable for fresh and marine water Highest safety and reliability Made in Germany Specifications
• Item Package Height: 3.0
• Item Package Length: 25.0
• Item Package Width: 3.0
• Manufacture: Eheim

• Editor's Impressions Of The Eheim AEH3634090
• Heat Quality [star rating='4.8']
• Quality [star rating='4.3']
• Value For Money [star rating='4.2']
• Affordability [star rating='4.4']

5. Hitop 50W 100W 300W Submersible Adjustable Aquarium Heater, for 5 – 65 Gallon Fish Tank (300W for ...

User Ratings: 59 10

HITOP-Fish First Impressions

"This heater is excellent."

Will update my review if any changes occur. But my guys don't read them and don't listen! The heater is being used in a 40 gallon breeder. Once I opened the box i noticed the quality of the construction. Personally for me the housing doesn't bother me. 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.

• Hitop 50W 100W 300W Submersible Adjustable Aquarium Heater, for 5 – 65 Gallon Fish Tank (300W for 25~65gallon)
• Explosion Proof: 2mm thickened explosion proof glass, 33% thicker than the normal, safer for both human and animals.
• Application:300W water heater is suitable for 20 – 50 gallon tank, also suitable for both saltwater and freshwater.
• Accurate Temperature: Temperatures from 68°F to 93°F (20°C - 34°C), come with a thermometer sticker, convenient to detect the water temperature without another pay.
• Long Service Life: Adopt 10-slot multi-branched heating wire ceramic frame, shorter length, 11*1*1 in(27*2.5*2.5 cm), better heat dissipation, and can save more space for your fishes.
• Complete Accessories and Warranty: Except for thermometer, also equipped with 3 suction cups, one for replacement, and offer 12 months warranty, leave you no worries after you buy it.
• Manufacture: IBAY
• Product Dimensions: 11 x 1 x 1 inches; 11.22 Ounces

• Editor's Impressions Of The HITOP-Fish
• Heat Quality [star rating='3.1']
• Quality [star rating='4.1']
• Value For Money [star rating='4.3']
• Affordability [star rating='5']

6. PERSUPER Submersible Aquarium Heater Adjustable LED Digital Temperature Display Fish Tank Heater for...

User Ratings: 62 12

PERSUPER First Impressions

"And I am glad I did."

I'm not a big fan of the big glass tubes. Am a totally sold customer and would recommend them to anybody! There is no protection from it banging on the glass tank. There is no protection from it banging on the glass tank. Keeps the temperature within 1 degree of what you set it to at all times. The temperature lights up so it's very easy to read. I had a thermometer on opposite side of tank and the heater was dead on true.

• PERSUPER Submersible Aquarium Heater Adjustable LED Digital Temperature Display Fish Tank Heater for Turtle Betta Fish Water Heater with Protective Guard
• Accurate temperature control: the intelligent IC chip is used for the aquarium heater. Press and hold the temperature control button for 3 seconds, switch between Fahrenheit and Celsius, and it is easy to control the temperature between 68 ° f / 20 ° C and 94 ° f / 34 ° C; this heater provides the best living environment for your aquatic organisms.
• Safety assurance: it adopts the highest waterproof grade IP68, titanium pipe material, explosion-proof and anti-corrosion. When heating, it is more resistant to damage than the traditional glass heater, and has the function of overheating and water shortage protection. External temperature controller: touch the button controller to adjust the temperature without wetting your hands.
• Automatic constant temperature function: when the water temperature reaches the specified temperature, the heater will automatically stop heating, when the water temperature is lower than the set temperature, the heater will automatically start heating.
• Easy to use: submersible heaters are suitable for all types of aquariums; they are installed vertically or horizontally to ensure that the equipment is completely submerged. The heating rod shall be completely immersed in water and cannot be heated without water. Please unplug the power supply when cleaning the fish tank or replacing the water in the fish tank.
• Wide compatibility: aquarium heater with CE, FCC and ROHS certification, plug with UL certification; suitable for fresh water and marine aquarium, aquaculture, glass containers and aquaculture system. 12 months warranty, 24-hour professional after-sales service.
• Manufacture: PERSUPER

• Editor's Impressions Of The PERSUPER
• Heat Quality [star rating='4.1']
• Quality [star rating='3.2']
• Value For Money [star rating='4.1']
• Affordability [star rating='4.1']

7. Inkbird Aquarium Heater with Probe Thermostat Fish Ornamental Shrimp Reef Tanks 24 Hours Double Time...

User Ratings: 75 6

Inkbird First Impressions

"I like this heater."

The temperatures are pretty accurate. The suction cups are large, high quality and seem to stick great. This is only day one though, so I shall keep an eye one it. It would stick out of my 30 g wide tank if I were to put it vertical. I got this heater for my 55 gallon aquarium. Well I bought a second one took me only one trying to get the right temperature. The cover over the heating tubes is great, the turtles claws can't damage the tube.

• Inkbird Aquarium Heater with Probe Thermostat Fish Ornamental Shrimp Reef Tanks 24 Hours Double Time with Day Night Automatic Temperature Controller
• 【Two Heating Plug】 Temperature control mode: on / off control. Please note that it is just a heating controller with no cooling function. Both plugs can control heating. The probe comes with a suction tray, which can be easily installed on the water tank.
• 【Applicable scene】Because it has the powerful function of corrosion protection, it is very suitable for fresh water, sea water aquarium, coral cylinder, ornamental shrimp and tropical fish.
• 【Dual Time Cycle Setting】Different daytime and night temperatures can be set within 24 hours depending on the physical needs of animals and plants.
• 【LED display screen】Plug-and-play products are designed with a dual liquid crystal display that provides a temperature display of Celsius or Fahrenheit, capable of displaying.
• 【Different function】Temperature calibration, over-temperature sensor fault alarm(over-temperature and sensor fault alarm). Maximum output load: 1100 W (110 V).
• Manufacture: Inkbird

• Editor's Impressions Of The Inkbird
• Heat Quality [star rating='3.8']
• Quality [star rating='3.6']
• Value For Money [star rating='5']
• Affordability [star rating='5']

8. Inkbird Pre-Wired Digital Dual Stage Temperature Controller Outlet Thermostats 110V 1100W With 6.65f...

User Ratings: 64 10

Inkbird First Impressions

"I do recommend."

This heater warmed it right up and now my Betta and guppies are more active. But my guys don't read them and don't listen! I was amazed how quickly I got to my temperature I need it 78 degrees. Personally for me the housing doesn't bother me. I love the heater otherwise, but I'm afraid some water has gotten inside the heater. The temperatures are pretty accurate. I'm in the process of setting up for tanks.

• Inkbird Pre-Wired Digital Dual Stage Temperature Controller Outlet Thermostats 110V 1100W With 6.65ft DC Cord NTC Stainless Probe Sensor for Aquarium, Incubator ect
• The sensor can easily be replaced.
• Maximum output load: 1100W (120V).
• Supports Centigrade or Fahrenheit unit display.
• Alarm when over-temperature and sensor error.
• Dual display window, be able to display measured temperature and set temperature at the same time.
• Item Weight: 1.06 pounds

• Editor's Impressions Of The Inkbird
• Heat Quality [star rating='4.6']
• Quality [star rating='4.8']
• Value For Money [star rating='5']
• Affordability [star rating='3.7']

9. 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 [star rating='3.9']
• Quality [star rating='4.1']
• Value For Money [star rating='3']
• Affordability [star rating='4.3']

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 [star rating='3.9']
• Quality [star rating='5']
• Value For Money [star rating='4']
• Affordability [star rating='3.8']