Editor's Choice - Our Favorite Fluval Aquarium Thermometers

1. Fluval Edge Digital Aquarium Thermometer

User Ratings: 68 6

Fluval 11206 First Impressions

"Suction cups are okay."

I've checked it against two other thermometers that are accurate. 6 inch long Bala Sharks that are known to be very unruly and boisterous. Works well in my betta tank, but provide a couple hours for it to read temp changes. When and if we run out of this batch, I'll instantly order another batch. You dont HAVE to stick the display onto your tank. Instead she sent a new package of two, both of which work. This company is taking the long term view of how to do business right.

  • Fluval Edge Digital Aquarium Thermometer
  • accurate and easy-to-read thermometer
  • mounts easily on outside of glass
  • ideal for fresh and saltwater tanks
  • temperature range of 64 to 86 degrees fahrenheit
  • Age range description: All ranges
  • Manufacture: Fluval
  • Product Dimensions: 0.2 x 2.9 x 7 inches; 0.16 Ounces
  • Editor's Impressions Of The Fluval 11206
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Fluval 11206 Final Thoughts

"2-degrees."

I just wrote it off as a minor loss. My poor fish was in 86 degrees water for a month. Then is started to give a low reading, and it is not reading the correct temperature. Now that the chickens are grown, I have one out in the coop as well. 6F all six took about three minutes to read between 88. I've checked it against two other thermometers that are accurate. All were Close enough for a fish tank and other uses.

Overall Score
4.3


(948 Points)

Peoples Choice - Other Highly Rated Fluval Aquarium Thermometers

2. Fluval Wireless 2in1 Digital Thermometer

User Ratings: 69 7

Fluval 11193 First Impressions

"Would recommend!"

Works well in my betta tank, but provide a couple hours for it to read temp changes. The suction will never be the same. Very accurate, have checked it with other thermometers as well. Instead she sent a new package of two, both of which work. I have mine on my 60 gallon cube marine tank. I came here to give this product a positive review. I came here to give this product a positive review.

  • Fluval Wireless 2in1 Digital Thermometer
  • 2-in-1: Measures water & room temperature accurately within 10C/20 F
  • Wireless technology: no probes or messy wires Large LCD display simultaneously shows aquarium and ambient room temperatures
  • Large, easy-to-read LCD Display
  • For fresh and saltwater aquariums
  • Manufacture: Rolf C. Hagen (USA) Corp.
  • Product Dimensions: 0.5 x 2.6 x 4.9 inches; 1.28 Ounces
  • Editor's Impressions Of The Fluval 11193
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Fluval 11193 Final Thoughts

"Great product!"

The non-working ones still provide 2 batteries each AND. In this scenario it would probably get knocked loose a lot. Love it, it's easy to read and keeps an accurate temp. And is easily hidden behind a plant. Love it, it's easy to read and keeps an accurate temp. He acted aggressively towards it and so I ultimate ended up removing it due to that. Far more accurate than the usual small glass ones or external LCD strips.

Overall Score
4.4


(318 Points)

3. Fluval Nano Thermometer

User Ratings: 64 12

Fluval 11199 First Impressions

"There is no question."

The only reason I didn't give this 5 stars is because my betta fish didn't like it. And for the price you cant beat it. I needed a solution that was not breakable and these do the trick! They reviewed the packaging or shipping by saying it arrived broken. These things are useful for a lot besides pet husbandry, too. I have this thermometer on all my tanks. I just wrote it off as a minor loss.

  • Fluval Nano Thermometer
  • Thermometer ideal for use with Fluval EBI Nano Shrimp and Fluval Flora Aquatic Plant Kits
  • Temperature range of 35-125 Fahrenheit
  • Accurate and easy to read
  • Perfect size for your aquarium
  • Measures 4 inches tall
  • Manufacture: Fluval
  • Product Dimensions: 1 x 2.3 x 4 inches; 0.48 Ounces
  • Editor's Impressions Of The Fluval 11199
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Fluval 11199 Final Thoughts

"Love it for my turtles."

2 deg, if it was 32, it would be a SOLID block of ice. 6 inch long Bala Sharks that are known to be very unruly and boisterous. It is about 6 inches in length and roughly an inch wide. It worked great and I highly recommend it! It is about 6 inches in length and roughly an inch wide. I used these on a number of my aquariums that have discus fish in them. It is about 6 inches in length and roughly an inch wide.

Overall Score
4.1


(147 Points)

4. Fluval Submersible Digital Thermometer

User Ratings: 63 12

Fluval 11194 First Impressions

"Perhaps it's my fault."

Very impressed, I have now had them in used for a month so far. My only complaint is that they tend to be a one time use. This thermometer is spot on accurate. So much easier than the ones that hang on the inside. Sure enough the digital thermometer was way off by 6 degrees! I have this thermometer on all my tanks. 6 inch long Bala Sharks that are known to be very unruly and boisterous.

  • Fluval Submersible Digital Thermometer
  • Features a large LED display
  • Fully submersible thermometer
  • Large screen for easy reading
  • Country Of Origin: China
  • Manufacture: Rolf C. Hagen (USA) Corp.
  • Product Dimensions: 1 x 2.6 x 4.9 inches; 0.81 Ounces
  • Editor's Impressions Of The Fluval 11194
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Fluval 11194 Final Thoughts

"It sticks very firmly."

I needed a solution that was not breakable and these do the trick! I have this thermometer on all my tanks. The suction works for a month at a time- in pool and hot tub circulation. Since it is a mercury thermometer, it is very accurate. My 50+ eyes cannot read a regular tank thermometer without squinting. Ordered three of these and they do the job. I just wrote it off as a minor loss.

Overall Score
3.9


(53 Points)

5. REPTI ZOO Digital Thermometer Temperature Controller for Reptile Tank Water Terrarium, Waterproof Re...

User Ratings: 65 12

REPTI ZOO THC15 First Impressions

"And I am glad I did."

I came here to give this product a positive review. The digital display itself is easy to read at a glance. All are pretty accurate within one degree as claimed. Very accurate, have checked it with other thermometers as well. You can glue, tape or simply cover the cords in the tank to keep them discreet. Since adding one of these, it has been much easier to monitor the temp of my tanks. I recommend gluing the suction cups in place where needed for long-term installation.

  • REPTI ZOO Digital Thermometer Temperature Controller for Reptile Tank Water Terrarium, Waterproof Reptile Timer with Thermostat Controller Lighting Timer
  • 3 in 1 Integrated design with day/night temperature, humidity and timing control, which can meet the physiological needs of temperature, humidity and lighting for Reptiles, Amphibians or Plants.
  • For begginers, "One Button Operation" quickly switch to the tropical mode or desert mode; For advancers, easy to set the desired day/night temperature, humidity and 4 timer periods (accurate to 1 second) with different modules logic technology
  • Easy-to-read full-view LCD Display panel with 24 hours time system
  • Plug and play design, easy to use and store; detachable temperature and humidity sensor probe for easy maintence
  • Alarm flashes and sounds when temperature reaches extreme high or low levels; Built-in memory stores settings in case of power failure
  • Manufacture: REPTI ZOO
  • Batteries: 1 CR2 batteries required.
  • Editor's Impressions Of The REPTI ZOO THC15
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

REPTI ZOO THC15 Final Thoughts

"Very accurate."

I got the second one as a bonus that I'm now using in my old tank. I got root rot after light leaks and high water temps. Then is started to give a low reading, and it is not reading the correct temperature. Now I'm getting back in on a much smaller scale with 3 gallon Acrylic Nano tanks. It works equally well on all of them. I think the people who said the suction cup broke. When and if we run out of this batch, I'll instantly order another batch.

Overall Score
4.1


(118 Points)

6. Aquarium Sticker Thermometer, Precise Measurement of Tank’s Temperature, Ideal for Fish, Shrimps &...

User Ratings: 69 7

SunGrow First Impressions

"Love this product!"

I have bought many many temperature gauges for my various fish tanks over the years. All were Close enough for a fish tank and other uses. Then she followed up again on that, asking if they had arrived and were okay. One being a very expensive digital. I find that the temps are accurate, and this product gives added peace of mind. I ordered this guy and it was 6 degrees hotter than the digital! One of my aquariums is glass, and the other two are plastic.

  • Aquarium Sticker Thermometer, Precise Measurement of Tank’s Temperature, Ideal for Fish, Shrimps & Turtles, Ensures pet Health, Increases Lifespan, Peel & Stick Installation, 2 Color Indicators
  • ✔ MEASURES TANK TEMPERATURE FOR PROPER & CONSISTENT MONITORING --- Maintaining an aquarium tank with pets means having to actively measure the temperature of their living environment. Always being aware of its correct hotness or coldness level can make you do necessary adjustments to ensure that it is consistently ideal for your pets. Aquarium Sticker Thermometer by SunGrow will help you determine if your aquatic pets are living in a suitable environment condition.
  • ✔ HELPS PROTECT YOUR AQUARIUM PETS FROM DISEASES AND DEATH --- Fish and amphibians are highly sensitive even to a slight change in temperature. It is a must to keep their surroundings as close as possible to their natural habitat. An inconsistent aquatic environment can cause bettas, turtles to be stressed, sick or even die.
  • ✔ AIDS IN REPRODUCTION & LONGER LIFESPAN --- Cold-blooded species change with the temperature of their surroundings. Keeping it right along with proper nutrition can triple their lifespan. Any big difference from the ideal will directly affect the breeding process. It also affects their growth development, activity levels and overall wellness.
  • ✔ EASY MONITORING OF TEMPERATURE WITH 2-COLOR INDICATORS --- It’s time to stop the guessing game of aquarium temperature because this handy sticker thermometer will give you the precise range of your tank’s temperature with 2-color indicators. Blue color depicts the exact temperature. When you spot both Green and Blue colors on the strip, it indicates that the temperature is between them.
  • ✔ NO SUCTION CUPS OR BATTERIES NEEDED --- This self-adhesive strip can be installed in two easy steps: Peel & Stick! No need to worry about suction cups or batteries and experience a worry-free monitoring. Measuring 5.1” tall by 0.7” wide, it can read a temperature range between 64 and 93 Degree Fahrenheit / 18 and 34 Degree Celsius. Please note that Fahrenheit is in big bold letters and Celsius is in small.
  • Manufacture: Luffy Pets Collection
  • Editor's Impressions Of The SunGrow
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

SunGrow Final Thoughts

"Fish are doing very well."

The units each had a battery in place and situated for immediate use. I used these on a number of my aquariums that have discus fish in them. The lid is textured aluminum, and the suction cups don't stick to that. Works well in my betta tank, but provide a couple hours for it to read temp changes. We are using them to measure various temperatures inside and outside of a motorhome. All were Close enough for a fish tank and other uses. The digital display is nice and small as well.

Overall Score
4.3


(53 Points)

7. REPTI ZOO Reptile Terrarium Thermometer Hygrometer Dual Gauges Pet Rearing Box Reptile Thermometer a...

User Ratings: 64 5

REPTI ZOO First Impressions

"6 tenths of a degree."

The suction will never be the same. He was moving slow in the winter and we realized he needed a heater! When and if we run out of this batch, I'll instantly order another batch. I ordered a new one and it works GREAT! I don't think they are backlit but for the price they are still nice. Then is started to give a low reading, and it is not reading the correct temperature. I have mine on my 60 gallon cube marine tank.

  • REPTI ZOO Reptile Terrarium Thermometer Hygrometer Dual Gauges Pet Rearing Box Reptile Thermometer and Humidity Gauge
  • Accurate measure temperature and humidity in vivariums, hatchers, brooders, propagators, etc
  • Easy to read:uses different color coded segments for easy reading
  • Easy to install:sticky pad on reverse allows it to be mounted on most surfaces
  • No battery,energy saving and environmental protection
  • 100% quality guarantee:we provide 12 months quality guarantee,if you have any question about our product,please contact us,we will reply and help you in 24 hours
  • Manufacture: REPTI ZOO
  • Part Number: RHT01
  • Item Weight: 1.58 ounces
  • Batteries Included?: No
  • Batteries Required?: No
  • Editor's Impressions Of The REPTI ZOO
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

REPTI ZOO Final Thoughts

"2 degrees of each other."

This doesn't bother me as it ws so cheap. In the right situation this magnet thermometer is the best available. I have kept aquariums for about 45 years. Water tested with Autidefy brand for two hours. I am extremely pleased with this product. I use a small flashlight if I don't want to brighten the area. We are using them to measure various temperatures inside and outside of a motorhome.

Overall Score
4.3


(262 Points)

8. AUTIDEFY LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature

User Ratings: 63 7

AUTIDEFY First Impressions

"8 C lower than this."

This thermometer is spot on accurate. It is large enough to see without being obtrusive. Bought the two pack of thermometers. The suction works for a month at a time- in pool and hot tub circulation. Very impressed, I have now had them in used for a month so far. 82 PER THERMOMETER with battery included. And for the price you cant beat it.

  • AUTIDEFY LCD Digital Aquarium Thermometer Fish Tank Water Terrarium Temperature
  • Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water)
  • Digital °C /° F thermometer;Temperature range -50°c ~ + 70°c,Operating temperature -10°c ~ +50°c
  • Easy to apply suction cup and easy to read LCD screen; Temperature readings to within 0.1 degree
  • Powered by one LR44 button cell (included)
  • Package Contents: 3 x Battery; 3 x Digital Thermometer;3 x Probe
  • Manufacture: AUTIDEFY
  • Editor's Impressions Of The AUTIDEFY
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

AUTIDEFY Final Thoughts

"I must say."

Water tested with Autidefy brand for two hours. For something so cheap, they are working remarkably well. This is my first 5 star review out of many many reviews on Amazon. I was using one of those ubiquitous cheap digital thermometers on Amazon. SIX Digital Thermometers with SIX batteries INCLUDED working so well. I had my heater set at 73-degrees and the thermometers showed 74. Personally I do not mind the way it looks in my aquarium.

Overall Score
4.2


(386 Points)

9. Marina Aqua-Minder Programmable Digital Thermometer

User Ratings: 60 11

Marina 11190 First Impressions

"Sticks easy."

Good cheap accurate aquarium thermometer. I removed the batteries of the units I wasn't using right away. I ordered this guy and it was 6 degrees hotter than the digital! Love it, it's easy to read and keeps an accurate temp. 49 thermometer that is 100% accurate. It works equally well on all of them. The non-working ones still provide 2 batteries each AND.

  • Marina Aqua-Minder Programmable Digital Thermometer
  • Provides continuous monitoring of temperature
  • Six programmable English tasks
  • Measures 32 degrees Fahrenheit to 199 degrees Fahrenheit
  • Ideal for people with busy schedules
  • For better product understanding please refer to the back of the product
  • Manufacture: Marina
  • Product Dimensions: 0.9 x 4.9 x 8 inches; 3.2 Ounces
  • Editor's Impressions Of The Marina 11190
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Marina 11190 Final Thoughts

"Perhaps it's my fault."

2 deg, if it was 32, it would be a SOLID block of ice. I can't say which is the most accurate and don't really care. It is easy to use and install it'disappears' in your tank it is so unobtrusive. Very impressed, I have now had them in used for a month so far. However, Lucy at Zacro read this review and emailed me. I think the people who said the suction cup broke. The suction will never be the same.

Overall Score
4.0


(37 Points)

10. uxcell Liquid Crystal Aquarium Fish Tank Fishbowl Thermometer Strip Sticker Black

User Ratings: 52 22

uxcell 18156 First Impressions

"Changed to 5-stars now."

The suction cups work well anywhere I have placed it it has not Fallen. 82 PER THERMOMETER with battery included. So far I've been very thrilled with these. Sure enough the digital thermometer was way off by 6 degrees! The units each had a battery in place and situated for immediate use. So the extra units will always come in handy. So far, they're all doing their job in my four tanks and I am quite content.

  • uxcell Liquid Crystal Aquarium Fish Tank Fishbowl Thermometer Strip Sticker Black
  • Product Name :Aquarium Thermometer
  • Temperature Measurement Range: 18degree ~ 34degree
  • Size: ~13(L) x 1.9(W)cm
  • Adhesive by the back, just peel off the tape and attach to outside /surface of aquarium
  • Different temperature with different color
  • Manufacture: uxcell
  • Product Dimensions: 0.3 x 3.3 x 7 inches; 0.16 Ounces
  • Editor's Impressions Of The uxcell 18156
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

uxcell 18156 Final Thoughts

"And I am glad I did."

They are within a degree or two of other thermometers I've checked to compare them. It is about 6 inches in length and roughly an inch wide. One being a very expensive digital. My 50+ eyes cannot read a regular tank thermometer without squinting. Bought the two pack of thermometers. And for the price you cant beat it. Just BE CAREFUL WHEN ADJUSTING, IT IS GLASS AND WILL BREAK.

Overall Score
3.6


(8 Points)

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