Editor's Choice - Our Favorite NICREW Aquarium Heaters

1. NICREW Preset Aquarium Heater, Submersible Fish Tank Heater with Electronic Thermostat, UL Listed

User Ratings: 71 6

NICREW N11941 First Impressions

"Overall happy."

I will definitely be buying another one for my other tanks at bigger one. Just be careful and keep an eye on your temp settings when you have kids over! This heater is NOT fully submersible. The controller is easy to use, very accurate and reliable. I wouldn't buy any other heater, unless one of these stops working. The suction cups are large, high quality and seem to stick great. The temperature gauge is fairly accurate in my 55 gallon tank.

  • NICREW Preset Aquarium Heater, Submersible Fish Tank Heater with Electronic Thermostat, UL Listed
  • Preset to 78°F - no adjustment required, which is the ideal temperature for most tropical fish
  • Automatic safety shut-off to avoid overheating
  • Indicator light allows simple visual confirmation of heater operation (red: heating up; off: temperature reached or unplugged)
  • Made from heat, shatter resistant quartz glass to allows for safe temperature control
  • Suitable for 3 - 10 gallon freshwater, marine and tropical aquariums
  • Manufacture: NICREW
  • Editor's Impressions Of The NICREW N11941
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

NICREW N11941 Final Thoughts

"9 degrees."

The temperatures are pretty accurate. Awesome chiller, perfect for Hydroponics. The heater is being used in a 40 gallon breeder. What more could you ask for great job Hygger Duncan. They shipped us the upgraded version that also heats! Come on Fluval, expect better from you. I like to keep it at 72 and from my thermometer it is reading at exactly 72.

Overall Score
4.4


(647 Points)

Peoples Choice - Other Highly Rated NICREW Aquarium Heaters

2. NICREW Submersible Mini Aquarium Heater, Aquatic Turtle Heater with Intelligent LED Temperature Disp...

User Ratings: 62 12

NICREW N12611 First Impressions

"They contacted me."

You program it for temperature you want your tank to be. We received the chiller promptly and put it into use. I hope these suction cups work very well. I used to try those other cheap heaters sold on amazon. Seems to keep the temp n the tank fairly regular. The red light means it's off, blue light means the temperature is constant. The cover over the heating tubes is great, the turtles claws can't damage the tube.

  • NICREW Submersible Mini Aquarium Heater, Aquatic Turtle Heater with Intelligent LED Temperature Display
  • Precise temperature adjustment from 68℉ to 94℉
  • Convenient and secure design will automatically shut off if heater is no longer properly submerged, preventing damage
  • LED temperature display allows easy visual confirmation of heater operation
  • External controller allows easy and safe temperature adjustment outside
  • Fully submersible heaters for aquariums up to 5G
  • Manufacture: NICREW
  • Editor's Impressions Of The NICREW N12611
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

NICREW N12611 Final Thoughts

"1 difference."

This product came in the nick of time! Those turned out to be a hit and miss. I have a 10gallon tank that was at 72 degrees. Come on Fluval, expect better from you. Well worth the money the first one I bought still works great. It is safe and dependable and comes with a one year warranty. For Discus you need warm and accurate heater and this seems to do the trick.

Overall Score
4.0


(404 Points)

3. NICREW Mini Submersible Aquarium Heater, Digital Temperature Display Fish Tank Heater with Adjustabl...

User Ratings: 55 17

NICREW First Impressions

"Thank you for reading."

Personally for me the housing doesn't bother me. --The heater itself is a bit shorter if your tank is a short one. Thanks for the great customer service! I got the 200W variant for my 54 gallon corner tank that's housing goldfish. There is a misconception on the internet that the heater isn't fully submersible. I tested it by unplugging and replugging it. Also I like how it shows both the current temperature and the set temperature.

  • NICREW Mini Submersible Aquarium Heater, Digital Temperature Display Fish Tank Heater with Adjustable External Controller, Suitable for Freshwater & Saltwater Tank
  • Equipped with precise temperature probe, making the temperature difference within ±2ºF to provide ideal living environment for your aquariums
  • Safe and easy to use external controller help operate without getting hands wet, allow Celsius and Fahrenheit control from 68℉/20°C to 94℉/34°C
  • Automatically shut off will be activated if heater is no longer properly submerged, preventing damage
  • Ideal for freshwater and saltwater aquariums, aquaculture, glass containers, and hydroponic systems
  • 100 watts heater is designed for 10-25 gallon fish tank
  • Manufacture: NICREW
  • Editor's Impressions Of The NICREW
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

NICREW Final Thoughts

"Works fine."

210 gallon ones and one 90 gallon bow front tank. This heater is NOT fully submersible. This is only day one though, so I shall keep an eye one it. Per my thermometers, they are all staying constant. Once I opened the box i noticed the quality of the construction. This is only day one though, so I shall keep an eye one it. This this is amazing and is worth the money.

Overall Score
4.0


(109 Points)

4. ISTA Micro Temperature Controller Thermostat 500W/1000W Heater Heating Aquarium Tank Globally

User Ratings: 39 29

Aquarium Equip I630_1000W ISTA First Impressions

"And I am glad I did."

My heater is fully submerged underwater and works perfectly fine. At this time I highly recommend this product. Would be great to be able to tune that to. I wouldn't buy any other heater, unless one of these stops working. I use a 50 for a 5 gal and a 10 gal tank. This is a great heater that is very easy to set up and program. The design is sleek and modern looking.

  • ISTA Micro Temperature Controller Thermostat 500W/1000W Heater Heating Aquarium Tank Globally
  • This Digital Temperature Controller is an excellent and convenient multifunction device for measuring and controlling temperature in Aquariums.
  • The stability of aquarium temperature is one of the crucial factors that contributes to the health and safety of your fish.
  • By utilizing the temperature controller, you can provide an environment with optimal temperature for your fish. This advanced temperature controller can measure and control temperature from 20 to 35 °C in Aquarium.
  • It has 3 power socket and maximum loading power is up to 1000 W. The controller set provides two Free500W Heating Rod ing Rod . The heating rod has over heating protection so it will automatic power off for heating rod when measured temperature reach 36 °C.
  • For aquarium in-door use only.
  • Manufacture: ISTA
  • Product Dimensions: 12.09 x 7.2 x 5 inches; 2.09 Pounds
  • Editor's Impressions Of The Aquarium Equip I630_1000W ISTA
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Aquarium Equip I630_1000W ISTA Final Thoughts

"Works great."

This is a great heater that is very easy to set up and program. Beware, but we are hoping for a good outcome! Also I like how it shows both the current temperature and the set temperature. I recieved this product without the instructions or the added thermometer. Temperature is slightly off by running a little warmer. This little heater is perfect; this is our third purchase of the same heater. The line is there due to regulations in certain countries.

Overall Score
3.2


(46 Points)

5. VIVOSUN 50W-500W Aquarium Heater Submersible Titanium Fish Tank Heaters with Intelligent LED Tempera...

User Ratings: 73 8

VIVOSUN First Impressions

"Just bought a second one!"

The heater is being used in a 40 gallon breeder. We would consider a replacement and then we would return the defective unit. I would definitely recommend this product. The temperatures are pretty accurate. I got a hold of Amazon, who put me in touch with the seller. 210 gallon ones and one 90 gallon bow front tank. After several weeks of running the heater.

  • VIVOSUN 50W-500W Aquarium Heater Submersible Titanium Fish Tank Heaters with Intelligent LED Temperature Display and External Temperature Controller
  • PRECISE TEMPERATURE CONTROL: An intelligent IC chip controls the heater temperature, making the temperature difference within ±1℃/±2ºF; Provide the best living environment for your aquatic creatures
  • SAFETY GUARANTEE: Made with IP68, the highest waterproof level; and a titanium tube material that features explosion-proof and anti-corrosion engineering, which makes this submersible heater more resistant to damage while heating better than traditional glass heaters; Built with overheat and water shortage protection
  • EXTERNAL TEMPERATURE CONTROLLER: The touch-button controller adjusts the temperature without getting your hands wet. It’s easy to control the temp from 68℉/20°C to 94℉/34°C; Check the size chart to find your desired fish tank heater
  • EASY TO SETUP: 300W submersible heater is suitable for 50 to 60 gallons aquariums; Vertical or horizontal installation and ensure the device is fully submerged underwater
  • WIDE COMPATIBILITY: The fish tank aquarium heater has CE, FCC and ROHS certification and the plug has a UL certification; Applicable for freshwater and marine aquariums, aquaculture, glass containers, and hydroponic systems
  • Press set button to start the temperature setting. The LED display will start to flash, continue pressing set button, the number in LED screen will circulate from 68 to 94 °F
  • Manufacture: VIVOSUN
  • Editor's Impressions Of The VIVOSUN
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

VIVOSUN Final Thoughts

"I bought the 7."

It is a bonus that the heater is titanium. I use a 50 for a 5 gal and a 10 gal tank. Sometimes it gets outside of it's ability to cool but only within a few degrees. I contacted the manufacturer and they sent me a new unit in less than a week! But my guys don't read them and don't listen! It took about an hour to reach 80f, which is fairly quick. I used to try those other cheap heaters sold on amazon.

Overall Score
4.4


(1173 Points)

6. Cobalt Aquatics Flat Neo-Therm Heater with Adjustable Thermostat (Fully-Submersible, Shatterproof De...

User Ratings: 69 13

Cobalt Aquatics 31005 First Impressions

"Works as intended."

I love the heater otherwise, but I'm afraid some water has gotten inside the heater. My fish likes to get close to it and he has never been hurt by it. I emailed the email it says to and told them. Bought it as a chiller for the k40 CO2 laser. Very easy to install and the adjustable temperature gauge is pretty accurate. Now, both points are clear on the package instructions. Beware, but we are hoping for a good outcome!

  • Cobalt Aquatics Flat Neo-Therm Heater with Adjustable Thermostat (Fully-Submersible, Shatterproof Design) from 25W to 300W
  • Super-flat design. Fully submersible, modern design for energy efficient Aquarium and terrarium heating. Includes reversible holster/bracket, which allows heater to face inward or outward. See the product images to determine the best neo-therm size for your tank.
  • Accurate, one-touch system. Simply set temperature between 66-96°f with one touch and the neo-therm electronic thermostat will maintain Tank temperature within +0.5°F. Led displays both set temp and actual temp, simultaneously.
  • Ultimate safety and reliability. Integrated thermal protection circuitry prevents heater from overheating. If you forget to turn it off, the neo-therm will automatically shut it down.
  • Virtually indestructible. Unlike cheap, glass heaters, the neo-therm is a resin/thermoplastic heater with a shatterproof outer-casing. Made in Poland and includes a 3-year warranty.
  • Manufacturer You can trust. Most manufacturers rate their heaters on the ability to raise an aquarium 2-3°f above ambient temperatures. This is unreliable and misleading, as the average home fluctuates 2-3°f or more throughout the day. Cobalt rates The neo-therm on the ability to raise a tank 11°f above ambient temperatures, so you will never have to worry about overworking the neo-therm or it keeping up!
  • Manufacture: Cobalt International Inc.
  • Product Dimensions: 2.25 x 1.25 x 11 inches; 8 Ounces
  • Editor's Impressions Of The Cobalt Aquatics 31005
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

Cobalt Aquatics 31005 Final Thoughts

"Well written but vague."

It comes with a hanging kit and can be secured on the edge of the tank. I have 3 of the Fluval heaters, in various sizes. This little heater is perfect; this is our third purchase of the same heater. I have only had minor problems with the suction cups. It took me a few days slowly turning the dial up to finally get it where I wanted. I use this little heater for my 10 gallon quarantine tank. I dont know, and havent tried just yet.

Overall Score
4.2


(1419 Points)

7. 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)

8. 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
  • Quality
  • Value For Money
  • Affordability

HITOP-Fish Final Thoughts

"9 degrees."

Would be great to be able to tune that to. But I am single and don't have to worry about this. --The heater itself is a bit shorter if your tank is a short one. I recieved this product without the instructions or the added thermometer. I have had to turn the dial to about 78-79 for the tank to stay around 76 degrees. Keeps the temperature within 1 degree of what you set it to at all times. I like the fact that it comes with a digital thermometer.

Overall Score
4.1


(109 Points)

9. hygger 300W Aquarium Heater with LED Display Controller Submersible Fish Tank Heater for 30-60 Gallo...

User Ratings: 79 5

hygger HG-925 First Impressions

"Thank you for reading."

They shipped us the upgraded version that also heats! But I am single and don't have to worry about this. Ick for instance detaches from fish at 86 degrees and dies at 89. I confirm it with my cooking digital probe thermometer. This is a powerful heater that holds temperature very well. I am very happy with this purchase. Was very impressed with the quality of this heater.

  • hygger 300W Aquarium Heater with LED Display Controller Submersible Fish Tank Heater for 30-60 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
  • 300 watt aquarium heater, voltage 110-120 V, heater rod 7.7 inches long, suitable for tank capacity 30-60 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

"Impressive."

I would definitely recommend this product. And I get to keep the first one I bought! It would stick out of my 30 g wide tank if I were to put it vertical. What more could you ask for great job Hygger Duncan. I waited a little bit to write the review so it could be accurate. Will update my review if any changes occur. I recieved this product without the instructions or the added thermometer.

Overall Score
4.6


(77 Points)

10. WiFi Enabled Aquarium Monitor and Controller. Text and Email Alerts for Fish Tank Temperature, Level...

LEVEL SENSE First Impressions

"So far so good!"

There is no protection from it banging on the glass tank. This has the best controller that I have found on the market. I wouldn't buy any other heater, unless one of these stops working. It's pretty noticeable, but I don't really care. The controller is easy to use, very accurate and reliable. My marina heater takes a few hours. I like the fact that it comes with a digital thermometer.

  • WiFi Enabled Aquarium Monitor and Controller. Text and Email Alerts for Fish Tank Temperature, Level Control & Leaks
  • Wi-Fi Enabled Leak Detection, Temperature and Level Alerts. Monitor aquarium from anywhere in the world!
  • Can directly control either the aquarium heater, aquarium lights, or Automatic Top Off (ATO) Pump
  • Provides Text and Email Alerts to Unlimited Recipients
  • Monitor aquarium temperature, water level, household temperature and humidity online.
  • Built in Auto Recharging Battery provides Tripped Breaker and Power Loss Detection
  • Approved for Fresh or Saltwater Use
  • Water Leak Detection
  • Power Failure Notifications
  • Manufacture: Sump Alarm Inc.
  • Batteries: 1 Lithium Polymer batteries required. (included)
  • Editor's Impressions Of The LEVEL SENSE
  • Heat Quality
  • Quality
  • Value For Money
  • Affordability

LEVEL SENSE Final Thoughts

"My fish is very content."

Keeps the water consistent and it's easy to adjust! 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. The heater protector was very heavy plastic and slim lined which is great. Bought it as a chiller for the k40 CO2 laser. My marina heater takes a few hours. I have had to turn the dial to about 78-79 for the tank to stay around 76 degrees.

Overall Score
5.0


(2 Points)

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