Editor's Choice - Our Favorite Coralife Aquarium Thermometers

1. Coralife 00232 Digital Thermometer

User Ratings: 50 10

Coralife 100105032 First Impressions

"Great price."

I used to have a large hang in the side tank that you couldn't miss. We are using them to measure various temperatures inside and outside of a motorhome. The non-working ones still provide 2 batteries each AND. I used these on a number of my aquariums that have discus fish in them. I've checked it against two other thermometers that are accurate. Excellent working for our bearded dragon tank. If the digital display starts to get dim, it's time for a new battery.

  • Coralife 00232 Digital Thermometer
  • Attaches to aquarium via small suction cup
  • 3 foot long temperature probe for large size aquariums
  • Battery included
  • Ideal for aquariums and terrariums
  • Readings to 0.1-degrees Fahrenheit or Celsius
  • Manufacture: Central Garden & Pet
  • Product Dimensions: 6.3 x 0.4 x 1.9 inches; 1.6 Ounces
  • Editor's Impressions Of The Coralife 100105032
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Coralife 100105032 Final Thoughts

"I like these."

I removed the batteries of the units I wasn't using right away. Bought the two pack of thermometers. Good cheap accurate aquarium thermometer. The plastic from the suction cup quickly turned from a clear to a milky white. It is always where yo last put it and it is very easy to see and read. The non-working ones still provide 2 batteries each AND. All are pretty accurate within one degree as claimed.

Overall Score
3.8


(230 Points)

2. uxcell Aquarium Tank Fishbowl 2 inches Dia Round Celsius Thermometer Sticker

uxcell a12011600ux0168 First Impressions

"2 deg of 32."

One being a very expensive digital. I have to admit I had two reasons for buying six. My poor fish was in 86 degrees water for a month. As you can see from my photos, in both°F and°C, all six are within. This is my first 5 star review out of many many reviews on Amazon. I removed the batteries of the units I wasn't using right away. I was using one of those ubiquitous cheap digital thermometers on Amazon.

  • uxcell Aquarium Tank Fishbowl 2 inches Dia Round Celsius Thermometer Sticker
  • Product Name : Aquarium Thermometer Sticker;Color : Black, Brown
  • Material : Plastic
  • Diameter : 5.1cm/ 2"
  • Weight : 2g
  • Package Contents : 1 × Aquarium Thermometer Sticker
  • Manufacture: uxcell
  • Editor's Impressions Of The uxcell a12011600ux0168
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

uxcell a12011600ux0168 Final Thoughts

"Never had any problems."

The plastic from the suction cup quickly turned from a clear to a milky white. I ordered a new one and it works GREAT! One of my aquariums is glass, and the other two are plastic. A bit large for anything smaller than 5 gallons, but that's to be expected. The suction cups work well anywhere I have placed it it has not Fallen. Ordered three of these and they do the job. However, Lucy at Zacro read this review and emailed me.

Overall Score
5.0


(1 Points)

3. Vipe Digital LCD Aquarium Thermometer Fish Tank Water Terrarium Temperature

User Ratings: 52 15

Vipe First Impressions

"Super easy."

The digital display is nice and small as well. I got the second one as a bonus that I'm now using in my old tank. I am extremely pleased with this product. I don't think i'll ever be able to trust a digital thermometer again. Good cheap accurate aquarium thermometer. This doesn't bother me as it ws so cheap. I'm pretty sure those reviewers have acrylic tanks.

  • Vipe Digital LCD Aquarium Thermometer Fish Tank Water Terrarium Temperature
  • Large accurate temperature readings with this Mini Digital Thermometer that has a simple appearance, discreet design and an easy to read LCD display.
  • Made of sturdy plastic material, ideal for use in refrigerators, refrigerators and freezers, the thermometer has a range of -50 degrees to +70 degrees.
  • Size of the Freezer Digital Thermometer Refrigerator makes it ideal for any situation where you need an accurate reading and easy-to-read screen displays the ambient temperature in Celsius.
  • Thermometer Refrigerator Digital Thermometer features ultra small and lightweight unit.
  • Powered by two button batteries, LCD Digital Thermometer can be used for a long time.
  • Manufacture: Vipe
  • Editor's Impressions Of The Vipe
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Vipe Final Thoughts

"It is within."

This is my first 5 star review out of many many reviews on Amazon. Then she followed up again on that, asking if they had arrived and were okay. I got root rot after light leaks and high water temps. The only reason I didn't give this 5 stars is because my betta fish didn't like it. He was moving slow in the winter and we realized he needed a heater! All are pretty accurate within one degree as claimed. I did have a problem with one in my first pack of 6.

Overall Score
3.8


(26 Points)

4. Fenleo Aquarium LCD Digital Thermometer Fish Tank Water Terrarium Temperature

Fenleo Aquarium First Impressions

"Works perfect."

It's kind of difficult to hide and keep out of the way. One extra battery came with each unit. The units each had a battery in place and situated for immediate use. It will make you wonder why nobody thought of it before. My only complaint is that they tend to be a one time use. 6 inch long Bala Sharks that are known to be very unruly and boisterous. 2 deg, if it was 32, it would be a SOLID block of ice.

  • Fenleo Aquarium LCD Digital Thermometer Fish Tank Water Terrarium Temperature
  • ♥Large, easy to read LCD display. Compact design for discrete use
  • ♥Temperature range -50 degree Celsius~ + 110 degree Celsius; Cable length: approx. 3.3 feet
  • ♥Powered by one LR44 button cell (included)
  • ♥Application: Aquarium, Indoor, Refrigerator, Human Body, Car, CPU Heat Diffuser
  • ♥Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water)
  • Manufacture: Lingsun Tech
  • Editor's Impressions Of The Fenleo Aquarium
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Fenleo Aquarium Final Thoughts

"6 tenths of a degree."

He acted aggressively towards it and so I ultimate ended up removing it due to that. My poor fish was in 86 degrees water for a month. The digital display is nice and small as well. In the right situation this magnet thermometer is the best available. I have this thermometer on all my tanks. I ordered this guy and it was 6 degrees hotter than the digital! Was going to get a floater until I saw this magnetic one!

Overall Score
4.0


(1 Points)

5. Shyfish LCD Digital Aquarium Thermometer,Fish Tank Water Terrarium Temperature for Fish and Reptiles...

Shyfish First Impressions

"So we are ordering more."

I was using one of those ubiquitous cheap digital thermometers on Amazon. I have this thermometer on all my tanks. A bit large for anything smaller than 5 gallons, but that's to be expected. These are the perfect size to be easily read while not being obtrusive. Far more accurate than the usual small glass ones or external LCD strips. Still a recommendation for me due to price and accuracy. It worked great and I highly recommend it!

  • Shyfish LCD Digital Aquarium Thermometer,Fish Tank Water Terrarium Temperature for Fish and Reptiles,Room Temperature,Indoor Humidity 3 in1(Fahrenheit)
  • Show clearly temperature: Pure transparent screen, You can read the temperature data clearly in the LCD screen. You can choose seither Fahrenheit or Celsius according to your need
  • Accurate measurement:The high-precision temperature probe can be immersed in the water for a long time to truly measure the temperature of the fish tank,Please note that taking into account the indoor temperature and humidity measurement the thermometer reading has about 0.3 degree deviation
  • Multifunctional measurement:Fish tank water temperature, room temperature, indoor humidity, three in one
  • Alarm function: Independently set high and low temperature thresholds, and automatically alarm when the threshold is exceeded.
  • Easy to use: Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water)
  • Manufacture: Shyfish
  • Product Dimensions: 4.96 x 2.95 x 0.35 inches; 3.53 Ounces
  • Batteries: 1 CR2 batteries required. (included)
  • Editor's Impressions Of The Shyfish
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Shyfish Final Thoughts

"2 degrees of each other."

It is always where yo last put it and it is very easy to see and read. I have bought many many temperature gauges for my various fish tanks over the years. I bought these for my dwc reservoirs. I've checked it against two other thermometers that are accurate. The suction cups work well anywhere I have placed it it has not Fallen. Simple fix, you adjust the thermometer within the suction cup and VIOLA! My 50+ eyes cannot read a regular tank thermometer without squinting.

Overall Score
5.0


(1 Points)

6. Vertical Aquarium Thermometer Mini

User Ratings: 77

LCR Hallcrest DPP30961 First Impressions

"Holds a steady 1."

6F all six took about three minutes to read between 88. My poor fish was in 86 degrees water for a month. I recommend gluing the suction cups in place where needed for long-term installation. 2 deg, if it was 32, it would be a SOLID block of ice. You can use the thermometer with or without the plastic suction cup. Water tested with Autidefy brand for two hours. Excellent working for our bearded dragon tank.

  • Vertical Aquarium Thermometer Mini
  • 5 mil thickness
  • 3 inch X 1 inch dimensions
  • Vertically mounted
  • Fahrenheit scale
  • Manufacture: LCR Hallcrest
  • Editor's Impressions Of The LCR Hallcrest DPP30961
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

LCR Hallcrest DPP30961 Final Thoughts

"Very accurate."

Place it on your aquarium and you are good to go. At least in the first 3 months of use. Still a recommendation for me due to price and accuracy. You dont HAVE to stick the display onto your tank. In this scenario it would probably get knocked loose a lot. I removed the batteries of the units I wasn't using right away. I tested this in a cup crammed full of ice and some water.

Overall Score
4.8


(5 Points)

7. SunGrow LCD Digital Betta Thermometer, Accurately Reads Tank Water Temperature, Maintains Betta's Re...

User Ratings: 68 3

SunGrow First Impressions

"Love it for my turtles."

This is how you calibrate a thermometer. Very accurate, have checked it with other thermometers as well. You can not swivle the thermometer to face a certain way. I had my heater set at 73-degrees and the thermometers showed 74. I came here to give this product a positive review. They reviewed the packaging or shipping by saying it arrived broken. It will make you wonder why nobody thought of it before.

  • SunGrow LCD Digital Betta Thermometer, Accurately Reads Tank Water Temperature, Maintains Betta's Real Habitat, Easy to Install, Comes with 2 Suction Cups and Battery
  • MAINTAINS TROPICAL HABITAT FOR BETTA--- In nature, betta fish are often found in warm and hot waters in low altitude areas such as Burma and Thailand. For the healthiest and most active betta, it is important to make their environment as close as possible to their habitat. Since betta are accustomed to consistent tropical temperatures, having an effective betta thermometer is essential to ensure the perfect temperature for your pet fish.
  • ACCURATELY MONITORS BETTA TANK WATER TERRARIUM TEMPERATURE --- When it comes to monitoring the water temperature of your betta tank, the most useful tool you can find is an aquarium thermometer. Don’t let your betta tell you it’s too cold or hot in the tank for them, by getting ill, and risk losing them. The durable, reliable Digital Thermometer from SunGrow quickly tells you the temperature at a quick glance any time, so that you can make potentially life saving adjustments to your betta tank
  • SHOWS TEMPERATURE IN FAHRENHEIT OR CELSIUS --- SunGrow Digital Thermometer displays the temperature in both Fahrenheit and Celsius and has a measurement of -58° to +158°F. If the water temperature is outside of that range, the screen will display L° for low temps and H° for high temps. To check the temperature, submerge the 38” cable and reading tip into the water and attach it using the suction cup. Then using another suction cup, place the LCD thermometer in a place most convenient for you
  • HELPS PROTECT BETTA FUR COAT SYNDROME --- As they are so sensitive to water temperature changes, betta are particularly susceptible to issues like Fur Coat Syndrome. It is a dermal infection that discolors betta’s fins and covers your fish in a furry mold. Fur Coat Syndrome is nearly always fatal within 30hrs of symptoms showing and is highly contagious. However, this is easily prevented if you keep your betta’s water between 78° and 80° Fahrenheit.
  • ENSURE HAPPINESS & LONGEVITY OF BETTA --- Being able to quickly and accurately read your betta tank’s water temperature is essential to keeping your betta fish healthy. Changes in water temperature can greatly stress out betta fish and seriously harm them. By using SungGrow Digital Thermometer,you ensure the happiness and longevity of your betta.
  • Manufacture: Luffy Pets Collection
  • Editor's Impressions Of The SunGrow
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

SunGrow Final Thoughts

"Suction cups fail."

I used these to raise chicks, and in my parrot cages. My 50+ eyes cannot read a regular tank thermometer without squinting. And for the price you cant beat it. One being a very expensive digital. So this is the extreme end of the high temperature range. I read some of the 1 star reviews and most of them are not about the product. I have mine on my 60 gallon cube marine tank.

Overall Score
4.4


(159 Points)

8. Marina ThermoSensor In-Out Thermometer

User Ratings: 47 15

Marina 11196 First Impressions

"1 degree of each other."

Have checked them against the glass thermometers and the accuracy is right on. The non-working ones still provide 2 batteries each AND. I guess these units do not like saltwater. I have mine on my 60 gallon cube marine tank. It is about 6 inches in length and roughly an inch wide. This is my first 5 star review out of many many reviews on Amazon. You can use the thermometer with or without the plastic suction cup.

  • Marina ThermoSensor In-Out Thermometer
  • Provides both inside and outside aquarium temperature readings
  • Accurate, easy-to-read digital display
  • Can be attached anywhere on the aquarium
  • Velcro mount for easy installation; Battery included
  • Contains temperature probe
  • Manufacture: Marina
  • Product Dimensions: 0.75 x 3 x 1.5 inches; 1.44 Ounces
  • Batteries: 2 LR44 batteries required. (included)
  • Editor's Impressions Of The Marina 11196
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Marina 11196 Final Thoughts

"Close enough I reckon!"

So far, they're all doing their job in my four tanks and I am quite content. I removed the batteries of the units I wasn't using right away. So, in those cases, I find it easier to simply replace it. You can not swivle the thermometer to face a certain way. The temperature fluctuated a lot with it. I came here to give this product a positive review. I use a small flashlight if I don't want to brighten the area.

Overall Score
3.7


(66 Points)

9. Aquarium Equip LCD Digital Thermometer Temperature Meter

User Ratings: 50 50

Aquarium Equip A930 First Impressions

"I like this."

This doesn't bother me as it ws so cheap. The non-working ones still provide 2 batteries each AND. So much easier than the ones that hang on the inside. 82 PER THERMOMETER with battery included. The suction works for a month at a time- in pool and hot tub circulation. Personally I do not mind the way it looks in my aquarium. Love it, it's easy to read and keeps an accurate temp.

  • Aquarium Equip LCD Digital Thermometer Temperature Meter
  • Measuring Range: 0°C~50°C
  • Accuracy: ±1°C
  • Ambient temperature: -10°C~50°C
  • Battery: LR44x1
  • Measures approximately: 4.1cm(1.6''L)x2.7cm(1''W)x1.2cm(0.47''H)
  • Manufacture: Dr. Moss
  • Product Dimensions: 6.42 x 4.21 x 1.1 inches; 1.6 Ounces
  • Editor's Impressions Of The Aquarium Equip A930
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Aquarium Equip A930 Final Thoughts

"Great product!"

It started working as soon as I put it in and has been working ever since. The suction will never be the same. Since it is a mercury thermometer, it is very accurate. So far, they're all doing their job in my four tanks and I am quite content. I got the second one as a bonus that I'm now using in my old tank. This little wonder allows me to see at a glance that everything is as it should be. I don't think they are backlit but for the price they are still nice.

Overall Score
3.0


(2 Points)

10. Wansan LCD Digital Aquarium Thermometer for Fish Tank Water Terrarium Temperature (Pack of 1,Black)

Wansan First Impressions

"1 degree of each other."

It is about 6 inches in length and roughly an inch wide. We are using them to measure various temperatures inside and outside of a motorhome. So this is the extreme end of the high temperature range. The suction will never be the same. I tested this in a cup crammed full of ice and some water. These digital thermometers are great and there is no guesswork involved. We are using them to measure various temperatures inside and outside of a motorhome.

  • Wansan LCD Digital Aquarium Thermometer for Fish Tank Water Terrarium Temperature (Pack of 1,Black)
  • Our Thermometer is made of durable plastic and clear, big LCD screen, lightweight and easy to read.
  • Package including:1 x Aquarium Thermometer
  • Submerge probe into fish tank to measure water temperature (Submerge probe only, do not submerge thermometer in water).
  • Easy to install.
  • Compact design for discrete use
  • Manufacture: Wansan
  • Product Dimensions: 0.39 x 0.39 x 0.39 inches; 1.06 Ounces
  • Editor's Impressions Of The Wansan
  • Thermometer Accuracy
  • Quality
  • Value For Money
  • Affordability

Wansan Final Thoughts

"Buy these."

The plastic from the suction cup quickly turned from a clear to a milky white. We are using them to measure various temperatures inside and outside of a motorhome. I think the people who said the suction cup broke. This company is taking the long term view of how to do business right. This thermometer is spot on accurate. I used to have a large hang in the side tank that you couldn't miss. We are using them to measure various temperatures inside and outside of a motorhome.

Overall Score
5.0


(1 Points)

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