Editor's Choice - Our Favorite Mylivell Aquarium Heaters

1. Mylivell Aquarium Heater Submersible Auto Thermostat Fish Tank Water Heater and Adjustable Temperatu...

User Ratings: 70 5

Mylivell First Impressions

"Great concept."

This has been in my fish tank for a few months now and it's been absolutely perfect! The heater is super thin and the reflective surface is interesting. I recieved this product without the instructions or the added thermometer. Keeps the temperature within 1 degree of what you set it to at all times. I think it works well to not stand out like other heaters. Thanks for the great customer service! The suction cups are large, high quality and seem to stick great.

  • Mylivell Aquarium Heater Submersible Auto Thermostat Fish Tank Water Heater and Adjustable Temperature with Suction Cups
  • High Quality: Aquarium heater made of high quality quartz glass, double seal material , advanced design, ensures safe operation.
  • Adjustable Temperature: The temperature of the fish tank heater can be adjusted automatically. Temperature setting range: 20°~34°C(65° F - 93° F), and the display is easy to read.
  • Fully Submersible. Power: 100W. Suggested water volume: 20 gal.
  • Both suiting for fresh or saltwater aquariums, provide a constant warm environment for your tropical fish to stay healthy.
  • Convenient and Safe: Our aquarium heater thermostat has two suction cups for attachment to the fish tank. The polarized plug prevents electrical shock.
  • Mylivell Submersible Aquarium Heaters are one of the most popular way to keep your tank at a steady and controlled temperature, Fish water heater will be your best choice!
  • You will need an aquarium heater to keep your tank in a steady and controlled temperature, as proper temperature range is very important to fish and other Aquatic in winter.
  • Mylivell Submersible Aquarium Heaters are one of the most popular way to keep your tank at a steady and controlled temperature, Fish water heater will be your best choice!
  • Manufacture: Mylivell
  • Product Dimensions: 11.6 x 2.7 x 1.5 inches; 7.2 Ounces
  • Editor's Impressions Of The Mylivell
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Mylivell Final Thoughts

"Highly recommended."

I dont know, and havent tried just yet. Also were nice along the whole process. The line is there due to regulations in certain countries. Takes a little while to drop the temps if it is hot in the garage. But I am single and don't have to worry about this. After several weeks of running the heater. I think it works well to not stand out like other heaters.

Overall Score
4.5


(1559 Points)

2. 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)

3. Hygger Mini Inline Quartz Glass Aquarium Heater with External Controller, Adjustable Submersible Bet...

User Ratings: 70 6

hygger First Impressions

"Great heater."

Keeps the water consistent and it's easy to adjust! The controller is easy to use, very accurate and reliable. I like the fact that it comes with a digital thermometer. I use this little heater for my 10 gallon quarantine tank. And kids love pushing all sorts of buttons. So far I like it setup was super easy. I have a 10gallon tank that was at 72 degrees.

  • Hygger Mini Inline Quartz Glass Aquarium Heater with External Controller, Adjustable Submersible Betta Fish Tank Thermostat 50W/100W
  • 【For Fish Tank 5-15 gallon】50W aquarium heater, voltage AC110-120V 60HZ, power cord is 4.6ft. Heater rod length is 5 inch, mini compact heater for small fish tank use. Perfect for betta tank. A very compact heater, easy to hide in the tank
  • 【Automatic Stop & Restart】Effectively maintain the tank water in the constant temp you set, stop heating when water temp reaches to the set temp and restart heating when the water temp is 1-2℉ below the set temp.The indicator light on the controller will be on red when it's heating, will be off when it stop heating
  • 【With Built-in Thermometer】you can set the the temp from 68℉ to 90℉,temp exactness is within 2 degrees in fahrenheit. There is a built-in thermometer in the heater to detect the water temp, not need to buy seperate thermometer
  • 【Durable Quartz Glass】this aquarium heater tube is heat-resistant quartz glass made, excellent in explosion-proof, can be used in fresh water and salt water aquariums, white alundum sand as the heat-conducting media, service life can be 3 years or more
  • 【Fully Submersible】this fish tank heater is waterproof, must be fully submerged in water when working, place it horizontally or vertically near the water intake or where the way of water flow
  • Manufacture: hygger
  • Editor's Impressions Of The hygger
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger Final Thoughts

"Buy with confidence!"

Those turned out to be a hit and miss. When i installed them, i let them sit in the tanks without power for 6-24 hours. --The heater itself is a bit shorter if your tank is a short one. I bought a similar one at the pet store and it barely worked. But my guys don't read them and don't listen! I am very happy with this purchase. So when I first received it it didn't work and I was very disappointed.

Overall Score
4.4


(475 Points)

4. hygger 500W 800W Titanium Steel Aquarium Heater for Marine and Fresh Water, Digital Submersible Heat...

User Ratings: 65 13

hygger First Impressions

"5 degrees."

Keeps the water consistent and it's easy to adjust! I hope these suction cups work very well. The temperature difference was very minor. Keeps the temperature within 1 degree of what you set it to at all times. We received the chiller promptly and put it into use. Keeps the temperature within 1 degree of what you set it to at all times. Sometimes it gets outside of it's ability to cool but only within a few degrees.

  • hygger 500W 800W Titanium Steel Aquarium Heater for Marine and Fresh Water, Digital Submersible Heater with Built-in Thermometer, External LCD Display Thermostat Controller
  • 【Energy Saving Heater for Aquarium Over 60 Gal】voltage 110-120V/60HZ, power 800W, US three-pin plug, heater length 9.6 inch. The heater power cord and the controller cord are both 5ft. 800W aquarium heater for fish tank 120-180 gallon. Fast heating up aquarium heater, it takes about 2 minutes to heat 3.5 gallon water up 3℉. With 2 heating modes: MAX heating, ECO heating, more energy saving than general high power heater
  • 【Auto Shut Off When Overheating or Not Fully Submerged】with built-in thermometer and waterline detector, when the water temp is over 97F, the controller will auto shut off to prevent overheating, when the top of heating element is out of water over 0.8 inch, the controller will auto shut off and stop heating and will automatically restart heating after you place the heater fully under water
  • 【Dual Digital Displays on Controller & Heater】the digit display on the heater is to show the current water temp, the controller digit display will show the current water temp and the set temp. When you want to check the water temp, you can see that on the heater or the controller display, the digits are synchronized updated
  • 【Fully Automatic Smart Thermostat】 it's very easy to set the temp on the controller, just press the set button to choose the temp digits from 70℉ to 94℉, only integer value can be chose. The heater will stop heating when the water temp reaches the set temp, and it will restart heating when the water temp is 0.5℉ lower than the set temp. The heating mode is MAX heating when the set temp is 1℉or more higher than water temp, it will be ECO heating when water temp is 0.5-1℉ less than the set temp
  • 【Suitable for Fresh Water & Marine Water】durable black titanium steel heating element, covered by sturdy plastic guard, service life can last for 3 years or more. Can be used for fresh-water and salt-water fish tanks. The aquarium heater comes with a sturdy clip, there are 2 strong suction cups on the clip, easy to install the heater on to the fish tank wall. The fish tank heater can be placed horizontally or vertically, but must be fully submerged under water
  • Please install the heater fully under water, but don't bury it in sands.
  • Please unplug the heater and wait it to cool down for about 5-10 mins before you doing water change or moving the heater.
  • To well install the fish tank heater on to the tank wall, we suggest to slip the suction cup clip to the top 1/3 of the heater tube.
  • Manufacture: hygger
  • Editor's Impressions Of The hygger
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger Final Thoughts

"Great product!"

I noticed my old hygger heater beginning to fail and my wife ordered this one. It comes with a hanging kit and can be secured on the edge of the tank. And kids love pushing all sorts of buttons. It took me a few days slowly turning the dial up to finally get it where I wanted. It comes with a hanging kit and can be secured on the edge of the tank. And I get to keep the first one I bought! I have 3 of the Fluval heaters, in various sizes.

Overall Score
4.1


(67 Points)

5. JZMYXA Aquarium Heater Clip Holder Aquarium Tube Clip Suction Cup Clip, 4 Pieces

User Ratings: 60 15

JZMYXA First Impressions

"My fish is very content."

I was amazed how quickly I got to my temperature I need it 78 degrees. I confirm it with my cooking digital probe thermometer. The temperature lights up so it's very easy to read. This has the best controller that I have found on the market. The temperature lights up so it's very easy to read. When i installed them, i let them sit in the tanks without power for 6-24 hours. I think it works well to not stand out like other heaters.

  • JZMYXA Aquarium Heater Clip Holder Aquarium Tube Clip Suction Cup Clip, 4 Pieces
  • 4 pieces. Leaf shape tube clamp.
  • Clip inner diam:0.69 inch(17.6mm).
  • Fit for pipe Outer diam between 0.7-1 inch(18-24 mm).
  • Fit for aquarium heater diam between 0.7-1 inch(18-24 mm).
  • High quality and durable.
  • Manufacture: JZMYXA
  • Product Dimensions: 1.14 x 1.57 x 0.39 inches; 0.81 Ounces
  • Editor's Impressions Of The JZMYXA
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

JZMYXA Final Thoughts

"Very pleased so far."

Keeps the water consistent and it's easy to adjust! We wish the controls were available in Farenheit also to make things a little easier. We would consider a replacement and then we would return the defective unit. If the blue light is flashing it means the heater is not fully submersible. I would definitely recommend this product. Per my thermometers, they are all staying constant. I'm in the process of setting up for tanks.

Overall Score
4.0


(74 Points)

6. Uniclife 100 Watt Aquarium Heater with Thermometer, Fish Tanks Heater of 20 Gallon

User Ratings: 77

Uniclife First Impressions

"What a long."

They promptly fixed the issue without any delays or drama. This has the best controller that I have found on the market. Once attached to the tank wall I've had no issues with it coming off. I was amazed how quickly I got to my temperature I need it 78 degrees. Easy to read the temp and know exactly how warm the water is. But I am single and don't have to worry about this. I left seller feedback yesterday but have yet to hear from the seller.

  • Uniclife 100 Watt Aquarium Heater with Thermometer, Fish Tanks Heater of 20 Gallon
  • Can be used in both freshwater and saltwater, applicable for 10~25 gallon fish tanks.
  • Adjust temperature by top red knob, range 68°F-93°F. Tube temperature displayed.
  • Water-tight of IP68 sealing. 2mm shatterproof quartz housing, bottom clash-proof cover. (NOTICE: Can’t be used even just cracked a tiny bit, pls contact us for replacement)
  • Measurement 9.7" x 1" (L x D). Only allowing for vertical or horizontal installment.
  • Package include aquarium heater x 1; Suction Cups x 3; stick-on thermometer x 1.
  • By rotating the Red knob at the top you can simply set the temperature from 68 - 93°F.
  • The red indicator light on while heating, automatic shut-off when reach the temp.
  • The aquarium glass submersible heater must be fully immersed.
  • Manufacture: Uniclife
  • Editor's Impressions Of The Uniclife
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Uniclife Final Thoughts

"Good product."

I appreciate the exterior temp readout and control module. I like the fact that it comes with a digital thermometer. I have it set to 81F to get a 77F water temp. The red light means it's off, blue light means the temperature is constant. Keeps the temperature within 1 degree of what you set it to at all times. The bonus digital thermometer it came with has been super helpful, and is accurate. We wish the controls were available in Farenheit also to make things a little easier.

Overall Score
4.5


(18 Points)

7. 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)

8. Uniclife 200 Watt Aquarium Heater with Thermometer, Fish Tanks Heater of 50 Gallon

User Ratings: 74

Uniclife First Impressions

"Peace out."

Pressing and holding the button for 5 seconds changes it from F to C readouts. Keeps the temperature within 1 degree of what you set it to at all times. It's only been set up for a month we'll see how well it does in a few months. The setting always stayed the same. I was amazed how quickly I got to my temperature I need it 78 degrees. I use a 50 for a 5 gal and a 10 gal tank. The temperatures are pretty accurate.

  • Uniclife 200 Watt Aquarium Heater with Thermometer, Fish Tanks Heater of 50 Gallon
  • Can be used in both freshwater and saltwater, applicable for 25-50 gallon fish tanks.
  • Adjust temperature by top red knob, range 68°F-93°F. Tube temperature displayed.
  • Water-tight of IP68 sealing. 2mm shatterproof quartz housing, bottom clash-proof cover. (NOTICE: Can’t be used even just cracked a tiny bit, pls contact us for replacement)
  • Measurement 11.2" x 1" (L x D). Only allowing for vertical or horizontal installment.
  • Package include aquarium heater x 1; Suction Cups x 3; stick-on thermometer x 1.
  • By rotating the Red knob at the top you can simply set the temperature from 68 - 93°F.
  • The red indicator light on while heating, automatic shut-off when reach the temp.
  • The aquarium glass submersible heater must be fully immersed.
  • Manufacture: Uniclife
  • Editor's Impressions Of The Uniclife
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Uniclife Final Thoughts

"One word of caution."

You don't have to worry about wide temperature swings with this unit. I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. But I am single and don't have to worry about this. It is a bonus that the heater is titanium. I have 3 of the Fluval heaters, in various sizes. This heater is NOT fully submersible. I would definitely recommend this product.

Overall Score
4.7


(5 Points)

9. Eheim Thermocontrol e250 Heater, Black (AEH3638090)

Eheim AEH3638090 First Impressions

"It is a bit pricey."

I contacted the manufacturer and they sent me a new unit in less than a week! Ick for instance detaches from fish at 86 degrees and dies at 89. At this time I highly recommend this product. Those turned out to be a hit and miss. This heater is NOT fully submersible. Ick for instance detaches from fish at 86 degrees and dies at 89. The design is sleek and modern looking.

  • Eheim Thermocontrol e250 Heater, Black (AEH3638090)
  • 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: 250W Temperature setting range: 68°F to 89°F (20 to 32°C) Aquarium Size (approx. ) 106-159 Gallons Height: 17. 4" Power Cord Length: 5. 5'
  • Item Package Height: 3.0
  • Item Package Length: 25.0
  • Item Package Width: 3.0
  • Manufacture: Eheim
  • Editor's Impressions Of The Eheim AEH3638090
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Eheim AEH3638090 Final Thoughts

"Perfect heater for my 2."

It took me a few days slowly turning the dial up to finally get it where I wanted. I like how the heater is constructed. The bonus digital thermometer it came with has been super helpful, and is accurate. The heater protector was very heavy plastic and slim lined which is great. This has the best controller that I have found on the market. You don't have to worry about wide temperature swings with this unit. This is only day one though, so I shall keep an eye one it.

Overall Score
5.0


(2 Points)

10. hygger Submersible Aquarium Heater, Adjustable Fish Tank Heater Compact Reliable Betta Heater, Heat-...

User Ratings: 63 11

hygger First Impressions

"That wasn't a good sign."

We wish the controls were available in Farenheit also to make things a little easier. After several weeks of running the heater. Come on Fluval, expect better from you. It just cycles through to 93f and starts over. I adjusted the set temperature a little lower to be more in the range I wanted. I appreciate the exterior temp readout and control module. Just be careful and keep an eye on your temp settings when you have kids over!

  • hygger Submersible Aquarium Heater, Adjustable Fish Tank Heater Compact Reliable Betta Heater, Heat-Resistant Milky Quartz Made, with External Temp Controller, 100W/300W, 10-60 Gallon
  • 【For Fish Tank 30-60 gallon】300W aquarium heater, voltage 110-120V, power cord is 5.4ft, please choose the right wattage aquarium heater according to our size chart. Don't suggest use this heater in sump or a tank with turtles in
  • 【Reliable & Safty Protection】automatically shut off when fault occurs. Effectively maintain the tank water in the constant temp you set, stop heating when the water temp is 1.5-2℉ above the set temp and restart heating when the water temp is 1.5-2℉ below the set temp
  • 【Temp adjustable】with external temp controller, set the temp to one of these values you can see on the dial: 75, 77, 79, 81, 83, 85, 87, 89, 91 by rotating the pointer, the heater will not work if you set the temp to other degrees between those values. Temp exactness is within 2 degrees in fahrenheit. There is a built-in thermometer in the heater to detect the water temp
  • 【Durable & Compact】this aquarium heater tube is heat-resistant milky quartz made, excellent in explosion-proof, can be used in fresh water and salt water aquariums, white alundum sand as the heat-conducting media, service life can be 3 years or more. A very compact heater, easy to hide in the tank
  • 【Fully Submersible】this fish tank heater is waterproof, must be fully submerged in water when working, stick it horizontally onto the tank side near the water intake or where the way of water flow
  • Voltage: 100-120V
  • Frequency: 60HZ
  • Manufacture: hygger
  • Editor's Impressions Of The hygger
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

hygger Final Thoughts

"9 degrees."

The line is there due to regulations in certain countries. I left seller feedback yesterday but have yet to hear from the seller. Easy to read the temp and know exactly how warm the water is. It's only been set up for a month we'll see how well it does in a few months. Those turned out to be a hit and miss. I tested it by unplugging and replugging it. I dont know, and havent tried just yet.

Overall Score
4.1


(569 Points)

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