Editor's Choice - Our Favorite SunGrow Aquarium Heaters

1. SunGrow Betta Plakat Heater, 10-Watt Submersible Aquarium Water Heater for Small Tanks (1.5-Gallons)...

User Ratings: 72 8

SunGrow First Impressions

"5 gallon tank."

I went ahead and went with the the larger 300W for my 45 gallon. The heater is super thin and the reflective surface is interesting. 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. Bought it as a chiller for the k40 CO2 laser. Pressing and holding the button for 5 seconds changes it from F to C readouts. Beware, but we are hoping for a good outcome!

  • SunGrow Betta Plakat Heater, 10-Watt Submersible Aquarium Water Heater for Small Tanks (1.5-Gallons), with Preset Temperature Capability, Suction Cups Included
  • ✔ KEEP YOUR BETTA HEALTHY --- To ensure that your betta has optimal health, you need to provide her with warm water. The water in the tank should not go below 74°F for optimal comfort and metabolic efficiency of your crown tail betta. The cold temperature for this gourami family fish will make her lethargic, stressed, and miserable.
  • ✔ AUTOMATICALLY REACHES THE PRESET TEMPERATURE --- The smart SunGrow heater for this freshwater fish has a built-in electronic thermostat to automatically maintain water around 72°F which is ideal for most tropical fish. It saves you from the trouble of constantly keeping a check on the temperature of your tank. It will automatically shut down when it will reach the desired temperature, no manual adjustment is needed.
  • ✔ CREATES THE IDEAL CONDITIONS FOR FLORA AND FAUNA --- The eastern Asian fish species can survive in a freshwater environment. This heater by SunGrow will create ideal conditions for them. A few preconditions are required to allow it to run with maximum efficiency. The heater must be completely submerged in the water and the indoor temperature should be around 62-74°F.
  • ✔ SUCTION CUPS INCLUDED FOR EASY INSTALLATION ---- Easily install the SunGrow Heater vertically or horizontally by using the built-in suction cups to attach to your tank. The best location to place the heater is in the stream of a powerhead or near the water flow, such as the outlet (or inlet) from the filter. This way the heat is evenly distributed throughout your tank.
  • ✔ FULLY SUBMERSIBLE WATER HEATER--- This 10-watt aquarium heater supports 1.5 gallons (5 liters) fish tank. Its exterior is designed with tougher than glass and the sealed polymer can be submerged into your tank. The heating element is surrounded by a thick plastic to ensure the protection of these caudal-finned betta fish.
  • Manufacture: Luffy Pets Collection
  • Editor's Impressions Of The SunGrow
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

SunGrow Final Thoughts

"Temperature!"

It would stick out of my 30 g wide tank if I were to put it vertical. It took about an hour to reach 80f, which is fairly quick. My fish likes to get close to it and he has never been hurt by it. Was very impressed with the quality of this heater. I left seller feedback yesterday but have yet to hear from the seller. I will be ordering more of these in the future. We received the chiller promptly and put it into use.

Overall Score
4.4


(71 Points)

2. 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)

3. 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)

4. Orangelight Aquarium Thermostat Heater Submersible Fish Tahk Heater with Adjust Knob Thermostat 2 Su...

User Ratings: 76 3

Orangelight First Impressions

"Long heater."

It comes with a hanging kit and can be secured on the edge of the tank. There is no protection from it banging on the glass tank. This heater works, but the dial it isn't very accurate. This is a powerful heater that holds temperature very well. Bought it as a chiller for the k40 CO2 laser. I'm not a big fan of the big glass tubes. There is a misconception on the internet that the heater isn't fully submersible.

  • Orangelight Aquarium Thermostat Heater Submersible Fish Tahk Heater with Adjust Knob Thermostat 2 Suction Cups
  • 【100 Watt Heater】This Aquarium heater is suitable for 15 to 25 gallons aquariums, Length - 10.5”, voltage 110-120V, power cord is 4.0 ft, please choose the right wattage aquarium heater according to your Aquarium.
  • 【Premium Shatterproof Glass】Made of shatterproof glass and BPA-free plastic. Orangelight aquarium heaters are fully submersible and safe for fish without any toxic substance producing.
  • 【Automatic Constant Temperature Function】This fish heater, adjustable temperature 68 ~ 93 °F, will shut off automatically when the temperature is reached, no extra adjustment is required.
  • 【Fresh and Saltwater】Both suiting for fresh or saltwater aquariums, provide a constant warm environment for your tropical fish to stay healthy.
  • 【Wide Compatibility】Applicable for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems
  • Made of shock resistant and shatter proof glass. Made of PTC element, an oxide ceramic, won't get fired, or broken like glass aquarium heaters, has longer service life and much safer than normal aquarium heaters.
  • 2mm thickened quartz glass, 33% thicker than 1.5mm normal aquarium heaters, much safer for human and your lovely fishes, your pets will no longer fear the winter.
  • Manufacture: Orangelight
  • Product Dimensions: 8.2 x 1.15 x 1.15 inches; 4.16 Ounces
  • Editor's Impressions Of The Orangelight
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Orangelight Final Thoughts

"Love this heater!"

This is only day one though, so I shall keep an eye one it. Seems to keep the temp n the tank fairly regular. I got the 200W variant for my 54 gallon corner tank that's housing goldfish. I have it set to 81F to get a 77F water temp. The heater is easy; turn the dial to set temp and plug in. It does blend well in some setups and may look bulky in others. It is a bonus that the heater is titanium.

Overall Score
4.6


(84 Points)

5. Aqua Euro USA Apex Chiller Horsepower: 1/10 HP

Aqua Euro USA AC10A First Impressions

"Can be hidden."

Sometimes you may have to tinker around with the dial. There is a misconception on the internet that the heater isn't fully submersible. I got the 200W variant for my 54 gallon corner tank that's housing goldfish. Or better yet, conceal it to the back corner. This this is amazing and is worth the money. I contacted the manufacturer and they sent me a new unit in less than a week! Or better yet, conceal it to the back corner.

  • Aqua Euro USA Apex Chiller Horsepower: 1/10 HP
  • Titanium heat exchanger features a high BTU rating for superior heat removal
  • Aquarium water chiller designed with quiet operation-rubber mounts to reduce vibration
  • Powerful compressor uses Freon-free and ozone-friendly R134a refrigerant
  • 1/10th Horsepower Rating
  • Manufacture: Aqua Euro USA
  • Item Weight: 29 pounds
  • Product Dimensions: 15.7 x 8.6 x 16.4 inches
  • Editor's Impressions Of The Aqua Euro USA AC10A
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Aqua Euro USA AC10A Final Thoughts

"5 or even."

All seem to vary between 1-2 degrees of each other which doesn't concern me much. The bonus digital thermometer it came with has been super helpful, and is accurate. For Discus you need warm and accurate heater and this seems to do the trick. There is a misconception on the internet that the heater isn't fully submersible. If the water runs low or air gets in the heater shuts off. And kids love pushing all sorts of buttons. Personally for me the housing doesn't bother me.

Overall Score
3.7


(2 Points)

6. n a Aquarium Heater,25W 50W Aquarium Fish Tank Submersible Heater,Anti-Scald Fish, with Water Shorta...

User Ratings: 60 8

N / A First Impressions

"I setup a 5."

Those turned out to be a hit and miss. I went ahead and went with the the larger 300W for my 45 gallon. Seems to keep the temp n the tank fairly regular. Product was received fast, works excellent! Ick for instance detaches from fish at 86 degrees and dies at 89. The heater is easy; turn the dial to set temp and plug in. I had a thermometer on opposite side of tank and the heater was dead on true.

  • n a Aquarium Heater,25W 50W Aquarium Fish Tank Submersible Heater,Anti-Scald Fish, with Water Shortage Protection and Aquarium Thermometer, for 3 to 25 Gallon Fish Tank Water Tank
  • [Automatic temperature control chip]: Aquarium Heater can automatically adjust the temperature between 77 ° F and 82 ° F (25 ° C to 28 ° C). It is different from the traditional manual adjustment of other aquarium heaters, without setting. It will automatically turn on / off to reach the set temperature continuously and steadily.
  • [Gift temperature sticker]: Paste the temperature sticker to the surface of the water tank, and you can use it to monitor the temperature.
  • [Stable and high-grade materials]: strong industrial plastics, non-toxic and durable. It has explosion-proof, anti-expansion functions, high temperature resistance and safety. Suitable for betta fish, such as turtles and lace. Length-13.97 cm, width-2.29 cm, thickness-1.68 cm.
  • [What capacity is suitable]: 25W fish tank heater is suitable for 9.83 liters to 1.83 liters, and can be used for mini fish tanks and aquariums. This aquarium heater is equipped with a suction cup, which can be easily absorbed in the aquarium. Easy to hide in the water tank.
  • [Warranty and quality assurance]: We provide 24-hour guidance service, you can contact us at any time, and one year of quality problems return service. This product aquarium heater has passed CE, ROHS, FCC certification. Explosion-proof, waterproof, anti-expansion, high temperature and other safe operations.
  • Manufacture: n a
  • Product Dimensions: 5.3 x 1 x 0.7 inches; 6.14 Ounces
  • Editor's Impressions Of The N / A
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

N / A Final Thoughts

"Overall happy."

The heater is super thin and the reflective surface is interesting. The temperature lights up so it's very easy to read. I think it works well to not stand out like other heaters. The temperature difference was very minor. Awesome chiller, perfect for Hydroponics. This is a great heater that is very easy to set up and program. Easy to read the temp and know exactly how warm the water is.

Overall Score
4.1


(51 Points)

7. Xinrub Akozon Fish Tank Water Cooling Heating Machine, Digital Temperature Controller Regulator Ther...

User Ratings: 21 26

Xinrub First Impressions

"This heater works great."

Well worth the money the first one I bought still works great. I dont know, and havent tried just yet. Personally for me the housing doesn't bother me. I have a few of these and I use them in my 55 gallons tanks and a 29 gallon tank. Temperature is slightly off by running a little warmer. The heater is super thin and the reflective surface is interesting. It does blend well in some setups and may look bulky in others.

  • Xinrub Akozon Fish Tank Water Cooling Heating Machine, Digital Temperature Controller Regulator Thermostat for Aquarium, Aquaculture and Greenhouse US Plug (20L/35L) (35L)
  • 【Adjustable Temperature】This water heater for fish tank adopts digital display and advanced microcomputer intelligent temperature control technology. The water can be cooled and heated to keep the water at a constant temperature.The aquarium water chiller has Celsius and Fahrenheit temperature switching capabilities.The upper temperature limit of this product is 40 ℃, the lower limit temperature is 0 ℃. Semiconductor refrigeration, environmental protection without pollution
  • 【Scope of Application】Low-power design ensures that the water is muted when it is heated or cooled. Suitable for Maximum 35L small-scale fish tank and aquarium aquaculture, refrigeration heating.Also can be used for temperature controlling in seafood aquaculture, transportation, etc.
  • 【Note】When in use, the fish tank temperature controller is forbidden to be inverted or horizontal.When pulling off the plug, you must hold the plug handle, can not pull the power cord, or easy to damage the power cord.When handling, please unplug the power cord plug, use both hands to hold the product at the bottom of the attention not to fall;Please do not place in the TV, audio and other electrical products next to the water machine may cause interference
  • 【Avoid Dangers】 Don't touch the plug with wet hands, otherwise it may cause electric shock or personal injury; Please use a dedicated power outlet,don't use the same socket with other high-power appliances,to avoid causing fire; when not in use for a long time, please unplug the power plug; socket should be placed in a higher position than the fish tank.Pay attention to avoid the flow of water along the power cord plug into the socke.
  • 【Reminder】Please use AC 220V or 110V power supply, do not use other power supply (according to the different regions ,the power supply voltage is not the same and can't be universal, please note). Do not store foreign matter near the vents or insert metal debris, wires, needles, and other foreign objects inside the product or in the product gap.For a long time not to use, please unplug the power plug
  • Manufacture: Xinrub
  • Item Weight: 4.07 pounds
  • Editor's Impressions Of The Xinrub
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Xinrub Final Thoughts

"This heater is excellent."

Would be great to be able to tune that to. I would definitely recommend this product. I got this heater for my 55 gallon aquarium. And I get to keep the first one I bought! Bought it as a chiller for the k40 CO2 laser. But my guys don't read them and don't listen! Very easy to install and the adjustable temperature gauge is pretty accurate.

Overall Score
3.1


(20 Points)

8. Aquarium Heater 50W/100W/200W/300W Fish Tank Water Heater Submersible Adjustable Temperature Thermos...

User Ratings: 67 10

Supyouleg First Impressions

"Looks as advertised."

I will be ordering more of these in the future. After several weeks of running the heater. Those turned out to be a hit and miss. Easy enough to let it run all the time. This heater works, but the dial it isn't very accurate. Thanks for the great customer service! I was amazed how quickly I got to my temperature I need it 78 degrees.

  • Aquarium Heater 50W/100W/200W/300W Fish Tank Water Heater Submersible Adjustable Temperature Thermostat for 15 30 55 75 Gallon Freshwater Saltwater Betta Tanks with 2 Suction Cups
  • ✅Upgraded Heater - Our aquarium heater is made of high quality real quartz glass material, will not explode during working, can totally keep your fish safe and health, suit for freshwater and saltwater tank.
  • ✅Circulating Working Mode - Our submersible aquarium heater has a super good feature is after setting your temperature, it will work about 5-10 minutes, then stop 2 minutes, then continue to working, repeat this working mode until get your temperature. This working mode avoid overheating your fish.
  • ✅Adjustable Temperature – The temperature of the water heater can be adjusted, rotate the orange dial can easily set the accurate temperature which you want. Temperature range is 20-34 c(68-93 F).
  • ✅Power – The power of the fish thank heater is 50W, which is suit for 5 to 10 gallons fish tank, low energy consumption. Voltage is 110V-120V. Cable length is 55 inch.
  • ✅Indicator Light - This small aquarium heater thermostat has a indicator light to let you know when the heater is on. It will be red when heating and off when the proper temperature has been reached. It will stop work automatic when water reach the temperature which you set, and begin to work when water temperature bellow setting temperature.
  • 4: Must be full submersible into water, don’t leave half heater out of water.
  • Manufacture: Supyouleg
  • Editor's Impressions Of The Supyouleg
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Supyouleg Final Thoughts

"So far so good."

The heater is easy; turn the dial to set temp and plug in. My heater is fully submerged underwater and works perfectly fine. It does blend well in some setups and may look bulky in others. The suction cups are large, high quality and seem to stick great. Well worth the money the first one I bought still works great. Bought it as a chiller for the k40 CO2 laser. Keeps the water consistent and it's easy to adjust!

Overall Score
4.2


(156 Points)

9. HITOP 50W 100W 300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Thermom...

User Ratings: 61 10

HITOP HP 608 First Impressions

"Until the next time."

Easy to read the temp and know exactly how warm the water is. I had a thermometer on opposite side of tank and the heater was dead on true. I noticed my old hygger heater beginning to fail and my wife ordered this one. It is a bonus that the heater is titanium. The heater is being used in a 40 gallon breeder. This is only day one though, so I shall keep an eye one it. I tested it by unplugging and replugging it.

  • HITOP 50W 100W 300W Adjustable Aquarium Heater, Submersible Fish Tank Heater Thermostat with Thermometer
  • Thickened Glass: 2mm thickened quartz glass, 33% thicker than 1.5mm normal aquarium heaters, much safer for human and your lovely fishes, your pets will no longer fear the winter.
  • Automatic Constant Temperature Function: this fish heater, adjustable temperature 68 ~ 93 °F, will shut off automatically when the temperature is reached, no extra adjustment is required.
  • Quick and easy installation, submersible fish tank heater, vertical or horizontal placement using suction cups. 1 extra powerful suction cups as your backup (total 3).
  • 300W aquarium heater, length 11-inch, power cord 4.9ft, recommended for aquariums 30 to 60 Gallons.
  • Bonus a stick-on thermometer, no need to buy another thermometer, 24-Hour Professional After-sales Service.
  • Manufacture: Haisen
  • Editor's Impressions Of The HITOP HP 608
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

HITOP HP 608 Final Thoughts

"7L Imagitarium tank."

This product came in the nick of time! Bought it as a chiller for the k40 CO2 laser. If the blue light is flashing it means the heater is not fully submersible. If the water runs low or air gets in the heater shuts off. --The cylinder or rod diameter is bigger. I think it works well to not stand out like other heaters. You don't have to worry about wide temperature swings with this unit.

Overall Score
4.2


(87 Points)

10. Aquarium Heater, 100W 300W 500w Submersible Fish Tank Heater with Titanium Tube Thermostat System LE...

User Ratings: 73 8

SeaELF First Impressions

"Temperature!"

My fish likes to get close to it and he has never been hurt by it. I like the fact that it comes with a digital thermometer. I will definitely be buying another one for my other tanks at bigger one. So when I first received it it didn't work and I was very disappointed. I will be ordering more of these in the future. I was worried about the quality but I am thoroughly impressed with this heater! Bought it as a chiller for the k40 CO2 laser.

  • Aquarium Heater, 100W 300W 500w Submersible Fish Tank Heater with Titanium Tube Thermostat System LED Digital Play and Remote Controller for 50-80 Gallon Tank
  • Premium Titanium Alloy Material & pinpoint probe : The seaELF aquarium heater made by premium titanium alloy, shatterproof, anti explosion, anti cracking and anti-corrosion than quartz glass aquarium heater and stainless steel tank heater, good for fresh water and sea water. The precise sensing probe on the top of heater for pinpoint temperature and double seal design to ensure safe operation. The heating tube with CE, RoHS, FC approved and the plug with UL approved.
  • Remote Controller & LCD Display : Update design with remote controller and LCD display , easy to setting and adjusting the aquarium heater’s temperature by remote controller and easy know the tank’s temperature by the LCD display, no need to buy extra temperature and wet your hands to setting the temperature again. (the remote is non waterproof, please keep it away from water).
  • Intelligent Overheating Protection & Lack-of Water Protection : With double sensing probe on the top, it will accurate detect the temperature and water, once overheating or the water cant cover the top of this aquarium heater, it will automatic power-off, prevent electric shock & burns and keep you and your fish safe. (E2,E8 display are mean overheating, please increase the water circulation when it happens)
  • Intelligent Thermostat Heating System :This aquarium heater made with intelligent thermostat heating system, it will heating automatically once the water temperature is less than the setting temperature and stop heating once it reached the setting temperature. Keep the aquarium water in a same temperature environment to protect fishes, amphibians, turtles and so on.(Please install it near a strong water flow).
  • 100% satisfaction : Just to show you how confident we are that your fish will enjoy the aquarium water heater, we are giving you a 6 month money-back guarantee, if there any problem when you install the heater or any un-satisfied with this product, please feel free to contact us for resend or refund, we will dealing with it within 48 hrs.
  • Manufacture: SeaELF
  • Editor's Impressions Of The SeaELF
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

SeaELF Final Thoughts

"Seems very well built."

This heater is NOT fully submersible. It took me a few days slowly turning the dial up to finally get it where I wanted. Keeps the water consistent and it's easy to adjust! And kids love pushing all sorts of buttons. Will update my review if any changes occur. No biggie, but annoying nonetheless. It's only been set up for a month we'll see how well it does in a few months.

Overall Score
4.4


(348 Points)

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