Editor's Choice - Our Favorite Uniclife Aquarium Heaters

1. Uniclife Preset Aquarium Heater Submersible 50W/250 W with Electronic Thermostat Fish Tank Heater fo...

User Ratings: 66 12

Uniclife First Impressions

"I do recommend."

It does blend well in some setups and may look bulky in others. I confirm it with my cooking digital probe thermometer. I would definitely recommend this product. I will definitely be buying another one for my other tanks at bigger one. I hope these suction cups work very well. The temperatures are pretty accurate. If the water runs low or air gets in the heater shuts off.

  • Uniclife Preset Aquarium Heater Submersible 50W/250 W with Electronic Thermostat Fish Tank Heater for 10/80 Gallon
  • 5~15 gallons fish tanks were recommended. Applicable for freshwater, marine and tropical aquariums.
  • Preset temperature of 78°F: Built-in electronic thermostat, Model PH50 would automatic heating water then maintain the temperature at 78±2° which is an ideal temperature for most of tropical fish. No adjustment needed, so not adjustable, please kindly note before order.
  • Shut-off Automatically: LED indicator light would display red while it’s turned on and heating, will automatic turn off when the preset temperature( 78±2°) was reached.
  • Anti-Shatter:Made of heat-resist thick quartz glass, shatterproof material to keep your fishes safe. UL listed, prevent the risk of fire, electric shock.
  • Small Sized and Submersible: Fully submerge the heater, tightly fix it with 2 strong suction cups vertically or horizontally on the tank. Small size makes it easy to hide and save space.
  • To keep the water at the right temperature of 78 degree F consistently for the most popular tropical fish species.
  • The temperature won’t change suddenly or frequently would make your fish happy and healthy.
  • Made of a shatter-resistant tempered quartz glass, which helps to keep your fish and other aquarium dwellers safe.
  • Manufacture: Uniclife
  • Editor's Impressions Of The Uniclife
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Uniclife Final Thoughts

"My fish is very content."

Come on Fluval, expect better from you. The line is there due to regulations in certain countries. I noticed my old hygger heater beginning to fail and my wife ordered this one. I got the 200W variant for my 54 gallon corner tank that's housing goldfish. Two inches above that is a waterline for maximum. Temperature is slightly off by running a little warmer. The setting always stayed the same.

Overall Score
4.2


(188 Points)

Peoples Choice - Other Highly Rated Uniclife Aquarium Heaters

2. Uniclife Aquarium Heater Submersible with Thermometer, 300 Watt for 80 Gallon Fish Tank

User Ratings: 69 7

Uniclife First Impressions

"Will buy again."

It is a bonus that the heater is titanium. I had a thermometer on opposite side of tank and the heater was dead on true. I recieved this product without the instructions or the added thermometer. Very easy to install and the adjustable temperature gauge is pretty accurate. Maintains it well except when the weather is already warm then it over heats it. This has been in my fish tank for a few months now and it's been absolutely perfect! Just be careful and keep an eye on your temp settings when you have kids over!

  • Uniclife Aquarium Heater Submersible with Thermometer, 300 Watt for 80 Gallon Fish Tank
  • Ideal for 50-80 gallons fish tanks, can be installed in both fresh and saltwater.
  • Red rotatable knob on top for adjusting the temperatures between ranges of 68°F-93°F. Visible temperature displayed allows accurate temperature maintain.
  • Please notice the red indicator light is on while working, will automatically turn off when temperature reached. Carefully check external condition before use. Recommend testing before introduce to fish.
  • Water-tight with IP68 sealing workmanship. Fix the heater tightly to the tank in vertical or horizontal with 3 strong suction cups. Shatterproof 2 mm extra thick quartz glass prevents electricity leakage and scratching. Measures 11.2" x 1" (L x D)
  • Come with Uniclife aquarium heater x 1; Suction Cups x 3; stick-on thermometer x 1(The color of number will change to blue to indicate the temperature).
  • 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

"This heater works great."

This does a great job at regulating the temp in my 10 gallon. I adjusted the set temperature a little lower to be more in the range I wanted. --The heater itself is a bit shorter if your tank is a short one. No biggie, but annoying nonetheless. The setting always stayed the same. This is a great heater that is very easy to set up and program. There is no protection from it banging on the glass tank.

Overall Score
4.4


(138 Points)

3. Uniclife Aquarium Heater Submersible with Thermometer, 200 Watt for 50 Gallon Fish Tank

User Ratings: 55 8

Uniclife First Impressions

"Just bought a second one!"

The temperature gauge is fairly accurate in my 55 gallon tank. Beware, but we are hoping for a good outcome! At this time I highly recommend this product. When i installed them, i let them sit in the tanks without power for 6-24 hours. I have 3 of the Fluval heaters, in various sizes. I got a hold of Amazon, who put me in touch with the seller. It took me only two tries to get it to the correct temperature.

  • Uniclife Aquarium Heater Submersible with Thermometer, 200 Watt for 50 Gallon Fish Tank
  • Ideal for 25-50 gallons fish tanks, can be installed in both fresh and saltwater.
  • Red rotatable knob on top for adjusting the temperatures between ranges of 68°F-93°F. Visible temperature displayed allows accurate temperature maintain.
  • Water-tight with IP68 sealing workmanship. Fix the heater tightly to the tank in vertical or horizontal with 3 strong suction cups. Shatterproof 2 mm extra thick quartz glass prevents electricity leakage and scratching. Measures 11.2" x 1" (L x D).
  • Come with Uniclife aquarium heater x 1; Suction Cups x 3; stick-on thermometer x 1(The color of number will change to blue to indicate the temperature).
  • 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.
  • Install it either vertically or horizontally by attaching the suction cups to the glass of the tank.
  • Manufacture: Uniclife
  • Editor's Impressions Of The Uniclife
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Uniclife Final Thoughts

"5 degrees."

I was worried about the quality but I am thoroughly impressed with this heater! The design is sleek and modern looking. They shipped us the upgraded version that also heats! The cover over the heating tubes is great, the turtles claws can't damage the tube. I would definitely recommend this product. My heater is fully submerged underwater and works perfectly fine. The heater is being used in a 40 gallon breeder.

Overall Score
4.2


(58 Points)

4. Uniclife Aquarium Heater Submersible with Thermometer, 100 Watt for 20 Gallon Fish Tank

User Ratings: 67 5

Uniclife First Impressions

"Just bought a second one!"

I went ahead and went with the the larger 300W for my 45 gallon. I noticed my old hygger heater beginning to fail and my wife ordered this one. I use a 50 for a 5 gal and a 10 gal tank. I think it works well to not stand out like other heaters. Checked the accuracy of the heater with an infrared thermometer. Sometimes you may have to tinker around with the dial. I used to try those other cheap heaters sold on amazon.

  • Uniclife Aquarium Heater Submersible with Thermometer, 100 Watt for 20 Gallon Fish Tank
  • Ideal for 10-25 gallons fish tanks, can be installed in both fresh and saltwater.
  • Red rotatable knob on top for adjusting the temperatures between ranges of 68°F-93°F. Visible temperature displayed allows accurate temperature maintain.
  • Please notice the red indicator light is on while working, will automatically turn off when temperature reached. Carefully check external condition before use. Recommend testing before introduce to fish.
  • Water-tight with IP68 sealing workmanship. Fix the heater tightly to the tank in vertical or horizontal with 3 strong suction cups. Shatterproof 2 mm extra thick quartz glass prevents electricity leakage and scratching. Measures 9.7" x 1" (L x D)
  • Come with Uniclife aquarium heater x 1; Suction Cups x 3; stick-on thermometer x 1(The color of number will change to blue to indicate the temperature).
  • 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

"I like this heater."

The red light means it's off, blue light means the temperature is constant. I have only had minor problems with the suction cups. It comes with a hanging kit and can be secured on the edge of the tank. The heater is being used in a 40 gallon breeder. No biggie, but annoying nonetheless. Once attached to the tank wall I've had no issues with it coming off. The heater is super thin and the reflective surface is interesting.

Overall Score
4.3


(25 Points)

Honorable Mentions - More Top Selling Uniclife Aquarium Heaters

5. Uniclife Aquarium Heater Submersible with Thermometer, 50 Watt for 10 Gallon Fish Tank

User Ratings: 83

Uniclife First Impressions

"Long heater."

At this time I highly recommend this product. At this time I highly recommend this product. Per my thermometers, they are all staying constant. I waited a little bit to write the review so it could be accurate. It does blend well in some setups and may look bulky in others. If the blue light is flashing it means the heater is not fully submersible. Awesome chiller, perfect for Hydroponics.

  • Uniclife Aquarium Heater Submersible with Thermometer, 50 Watt for 10 Gallon Fish Tank
  • Uniclife submersible heater, ideal for 5-15gal fish tanks, can be installed in both fresh and saltwater.
  • Red rotatable knob on top for adjusting the temperatures between ranges of 68°F-93°F. Visible temperature displayed allows accurate temperature maintain.
  • Please notice the red indicator light is on while working, will automatically turned off when temperature reached. Carefully check external condition before use. Recommend testing before introduce to fish.
  • Water-tight with IP68 sealing workmanship. Fix the heater tightly to the tank in vertical or horizontal with 3 strong suction cups. Shatterproof 2 mm extra thick quartz glass prevents electricity leakage and scratching. Measures 8.6" x 1" (L x D)
  • Come with Uniclife aquarium heater x 1; Suction Cups x 3; stick-on thermometer x 1(Color of number will change to blue to indicate the temperature).
  • 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

"And I am glad I did."

They shipped us the upgraded version that also heats! It took me a few days slowly turning the dial up to finally get it where I wanted. All seem to vary between 1-2 degrees of each other which doesn't concern me much. It is safe and dependable and comes with a one year warranty. The design is sleek and modern looking. I will be ordering more of these in the future. I dont know, and havent tried just yet.

Overall Score
4.8


(20 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. 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)

8. AquaTop Titanium Heater w/Controller

User Ratings: 70 7

AquaTop TH-C500 First Impressions

"Just bought a second one!"

It does blend well in some setups and may look bulky in others. I have only had minor problems with the suction cups. I hope these suction cups work very well. The setting always stayed the same. So when I first received it it didn't work and I was very disappointed. The temperature gauge is fairly accurate in my 55 gallon tank. This heater is NOT fully submersible.

  • AquaTop Titanium Heater w/Controller
  • Age Range Description: All Life Stages
  • Manufacture: Aquatop
  • Product Dimensions: 12 x 3 x 4 inches; 13.6 Ounces
  • Editor's Impressions Of The AquaTop TH-C500
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

AquaTop TH-C500 Final Thoughts

"Same suckers for years!"

For Discus you need warm and accurate heater and this seems to do the trick. Now, both points are clear on the package instructions. I love the heater otherwise, but I'm afraid some water has gotten inside the heater. So far I like it setup was super easy. Come on Fluval, expect better from you. We would consider a replacement and then we would return the defective unit. I left seller feedback yesterday but have yet to hear from the seller.

Overall Score
4.4


(119 Points)

9. FREESEA Aquarium Fish Tank Heater: 50 | 100 | 300 Watt Adjustable Thermostat with 2 Suction Cups & T...

User Ratings: 70 10

FREESEA First Impressions

"Quality was amazing."

Thanks for the great customer service! This little heater is perfect; this is our third purchase of the same heater. Bought it as a chiller for the k40 CO2 laser. Will update my review if any changes occur. The line is there due to regulations in certain countries. This product came in the nick of time! It took me only two tries to get it to the correct temperature.

  • FREESEA Aquarium Fish Tank Heater: 50 | 100 | 300 Watt Adjustable Thermostat with 2 Suction Cups & Thermometer for Betta Tank | Saltwater Tank | Aquarium | Coral Tank
  • ★【300Watt Heater】: This Aquarium heater is suitable for 40 to 60 gallons aquariums, Length - 12.6 inch,voltage 110-120V, power cord is 4.0 ft, please choose the right wattage aquarium heater according to our size chart.
  • ★【Temperature Range】: 64°F~93°F , It is very easy to adjust the temperature you need, we also deliberately give each customer a free diving thermometer, you can observe the water temperature of the fish tank at any time.
  • ★【Intelligent Temperature Control】: Automatic constant temperature 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. Furthermore, Automatic safety shut-off feature, and overheating protection.
  • ★【High Quality】: This upgraded aquarium heater now updated for 2mm 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, suitable both for fresh and salt water.
  • ★【Satisfaction Guaranteed】: Gain the confidence to go hard with us! 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.
  • Manufacture: FREESEA
  • Product Dimensions: 13.39 x 1.18 x 0.79 inches; 10.58 Ounces
  • Editor's Impressions Of The FREESEA
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

FREESEA Final Thoughts

"Well written but vague."

The heater protector was very heavy plastic and slim lined which is great. It would stick out of my 30 g wide tank if I were to put it vertical. It took me only two tries to get it to the correct temperature. This heater works, but the dial it isn't very accurate. The bonus digital thermometer it came with has been super helpful, and is accurate. Product was received fast, works excellent! It is safe and dependable and comes with a one year warranty.

Overall Score
4.3


(44 Points)

10. CNZ EH-300W 300W Aquarium Glass Submersible Heater, 2-Pack

User Ratings: 63 7

CNZ First Impressions

"I have a betta in a 1."

The temperature gauge is fairly accurate in my 55 gallon tank. Am a totally sold customer and would recommend them to anybody! The setting always stayed the same. --The heater itself is a bit shorter if your tank is a short one. This product came in the nick of time! Easy to read the temp and know exactly how warm the water is. Ick for instance detaches from fish at 86 degrees and dies at 89.

  • CNZ EH-300W 300W Aquarium Glass Submersible Heater, 2-Pack
  • Fully submersible glass heater for reliable aquarium performance
  • Set desired aquarium temperature & on/off indicator light confirms operation
  • Fast heating and accurate heating temperature range is 68-93F (20-34C)
  • On/off indicator light allows simple, visual confirmation of heater operation
  • Wattage: 300-watt; Heater Length:14"; Tank Capacity: 75gal; Voltage: 110-120v 60Hz
  • Manufacture: CNZ
  • Editor's Impressions Of The CNZ
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

CNZ Final Thoughts

"No issues."

It does blend well in some setups and may look bulky in others. But my guys don't read them and don't listen! I have only had minor problems with the suction cups. I contacted the manufacturer and they sent me a new unit in less than a week! I got this heater for my 55 gallon aquarium. This this is amazing and is worth the money. I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank.

Overall Score
4.2


(155 Points)

Copyright © 2022 Rob Aquatics — Primer Child WordPress theme by GoDaddy