Editor's Choice - Our Favorite Marina Aquarium Thermometers
1. Marina Floating Thermometer with Suction Cup
User Ratings: 70 5
Marina 11201A1 First Impressions
"So I guess I needed them!"This thermometer is spot on accurate. So much so that I purchased a second set of 6. Still a recommendation for me due to price and accuracy. Personally I do not mind the way it looks in my aquarium. The digital display is nice and small as well. A bit large for anything smaller than 5 gallons, but that's to be expected. This is my first 5 star review out of many many reviews on Amazon.
- Marina Floating Thermometer with Suction Cup
- Easy to read floating aquarium thermometer with suction cups
- Includes a safety zone indicator appropriate for most tropical fish
- Equipped with suction cups to attach to the side of your fish tank
- Ensures your aquarium is at the proper temperature
- Thermometer is 4.25 inches tall
- Manufacture: Marina
- Product Dimensions: 7 x 4 x 1 inches; 0.35 Ounces
- Editor's Impressions Of The Marina 11201A1
- Thermometer Accuracy [star rating='3.9']
- Quality [star rating='3.5']
- Value For Money [star rating='3.7']
- Affordability [star rating='4.8']
Marina 11201A1 Final Thoughts
"I like this."A bit large for anything smaller than 5 gallons, but that's to be expected. Now I'm getting back in on a much smaller scale with 3 gallon Acrylic Nano tanks. The digital display itself is easy to read at a glance. They are within a degree or two of other thermometers I've checked to compare them. I am extremely pleased with this product. He acted aggressively towards it and so I ultimate ended up removing it due to that. This temperature read a perfect 32 degrees.
Overall Score
4.4
(8702 Points)
PRICE AVAILABLE ON AMAZON
Peoples Choice - Other Highly Rated Marina Aquarium Thermometers
2. Marina Deluxe Floating Thermometer with Suction Cup
User Ratings: 69 7
Marina 11204 First Impressions
"THERE'S MORE!"Was going to get a floater until I saw this magnetic one! 82 PER THERMOMETER with battery included. If the digital display starts to get dim, it's time for a new battery. And is easily hidden behind a plant. So far, they're all doing their job in my four tanks and I am quite content. I tested this in a cup crammed full of ice and some water. Sure enough the digital thermometer was way off by 6 degrees!
- Marina Deluxe Floating Thermometer with Suction Cup
- Easy-to-read floating thermometer
- Includes a safety zone indicator
- Equipped with suction cups
- Ensures your aquarium is at a proper temperature
- Temperature range of 30 to 120 degrees Fahrenheit
- Manufacture: Marina
- Product Dimensions: 0.5 x 3.8 x 4.3 inches; 0.18 Ounces
- Editor's Impressions Of The Marina 11204
- Thermometer Accuracy [star rating='3.9']
- Quality [star rating='4.9']
- Value For Money [star rating='3.5']
- Affordability [star rating='3.6']
Marina 11204 Final Thoughts
"The hotter, the faster."I've checked it against two other thermometers that are accurate. Love it, it's easy to read and keeps an accurate temp. A bit large for anything smaller than 5 gallons, but that's to be expected. A battery can last you up to six months, I'd say, but expect more like three. I have to admit I had two reasons for buying six. However, Lucy at Zacro read this review and emailed me. A battery can last you up to six months, I'd say, but expect more like three.
Overall Score
4.4
(649 Points)
PRICE AVAILABLE ON AMAZON
3. Marina Stainless Steel Thermometer
User Ratings: 51 11
Marina 11203A1 First Impressions
"6 tenths of a degree."82 PER THERMOMETER with battery included. I have kept aquariums for about 45 years. And for the price you cant beat it. You can not swivle the thermometer to face a certain way. Have checked them against the glass thermometers and the accuracy is right on. I needed a solution that was not breakable and these do the trick! Was going to get a floater until I saw this magnetic one!
- Marina Stainless Steel Thermometer
- Easy-to-read stainless steel thermometer
- Includes a safety zone indicator. Safety zone Indicator for Most Tropical fish
- Ensures your aquarium is at a proper temperature. Protects your Fish from Unsafe Temperature
- Hooks onto the side of your aquarium
- 4.5 inches tall
- Manufacture: Marina
- Product Dimensions: 0.9 x 3.9 x 7 inches; 0.64 Ounces
- Editor's Impressions Of The Marina 11203A1
- Thermometer Accuracy [star rating='3.8']
- Quality [star rating='4.2']
- Value For Money [star rating='4.4']
- Affordability [star rating='3.5']
Marina 11203A1 Final Thoughts
"Currently maintains a 76."All were Close enough for a fish tank and other uses. The lid is textured aluminum, and the suction cups don't stick to that. The suction cups work well anywhere I have placed it it has not Fallen. It works equally well on all of them. Still a recommendation for me due to price and accuracy. So the extra units will always come in handy. My only complaint is that they tend to be a one time use.
Overall Score
4.0
(251 Points)
PRICE AVAILABLE ON AMAZON
4. Marina Floating Thermometer
User Ratings: 66 11
Marina 11200A1 First Impressions
"Versatile."Have checked them against the glass thermometers and the accuracy is right on. 50 thermometers, reads much easier and no suction cup residue, also looks better. The units each had a battery in place and situated for immediate use. In this scenario it would probably get knocked loose a lot. One of my aquariums is glass, and the other two are plastic. So far, they're all doing their job in my four tanks and I am quite content. Then is started to give a low reading, and it is not reading the correct temperature.
- Marina Floating Thermometer
- Item Package Height: 19.812 Centimeters
- Item Package Length: 1.778 Centimeters
- Item Package Width: 10.922 Centimeters
- Product Type: Pet Supplies
- Manufacture: Marina
- Product Dimensions: 0.4 x 3.7 x 4.2 inches; 0.64 Ounces
- Editor's Impressions Of The Marina 11200A1
- Thermometer Accuracy [star rating='5']
- Quality [star rating='4.2']
- Value For Money [star rating='3.2']
- Affordability [star rating='4']
Marina 11200A1 Final Thoughts
"Super easy."Excellent working for our bearded dragon tank. These things are useful for a lot besides pet husbandry, too. I ordered a new one and it works GREAT! I bent it a little bit and when I put it back it was perfectly fine. I used these on a number of my aquariums that have discus fish in them. Have checked them against the glass thermometers and the accuracy is right on. So far, they're all doing their job in my four tanks and I am quite content.
Overall Score
4.2
(102 Points)
PRICE AVAILABLE ON AMAZON
Honorable Mentions - More Top Selling Marina Aquarium Thermometers
5. 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 [star rating='3.8']
- Quality [star rating='2.9']
- Value For Money [star rating='3.4']
- Affordability [star rating='4.6']
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)
PRICE AVAILABLE ON AMAZON
6. Marina " Diameterorado", 66 to 88 F / 19 to 31 C
User Ratings: 57 15
Marina 11223 First Impressions
"Very accurate."This company is taking the long term view of how to do business right. I needed a solution that was not breakable and these do the trick! The suction works for a month at a time- in pool and hot tub circulation. The plastic from the suction cup quickly turned from a clear to a milky white. Then is started to give a low reading, and it is not reading the correct temperature. 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.
- Marina " Diameterorado", 66 to 88 F / 19 to 31 C
- Easy To Mount Thermometer For Glass Aquariums
- Measures In Celsius And Fahrenheit
- Temperature Range Of 66 To 88-Degree Fahrenheit And 19 To 31-Degree Celsius
- Equipped With Adhesive Backing For Durable Hold
- Measures 3-inch long
- Manufacture: Marina
- Product Dimensions: 0.3 x 3 x 7 inches; 0.32 Ounces
- Editor's Impressions Of The Marina 11223
- Thermometer Accuracy [star rating='4.7']
- Quality [star rating='3.6']
- Value For Money [star rating='3.2']
- Affordability [star rating='4.4']
Marina 11223 Final Thoughts
"That adds peace of mind."I find that the temps are accurate, and this product gives added peace of mind. I ordered a new one and it works GREAT! Very accurate, have checked it with other thermometers as well. 89 I could buy Six Thermometers with Six included batteries. One being a very expensive digital. I've checked it against two other thermometers that are accurate. He was moving slow in the winter and we realized he needed a heater!
Overall Score
4.0
(47 Points)
PRICE AVAILABLE ON AMAZON
7. 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 [star rating='4.3']
- Quality [star rating='4.8']
- Value For Money [star rating='4.6']
- Affordability [star rating='4']
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)
PRICE AVAILABLE ON AMAZON
8. Marina Standing Thermometer, Fahrenheit and Celsius Aquarium Thermometer, 11202
User Ratings: 53 5
Marina 11202 First Impressions
"So far so good."All were Close enough for a fish tank and other uses. So this is the extreme end of the high temperature range. The only reason I didn't give this 5 stars is because my betta fish didn't like it. Excellent working for our bearded dragon tank. It is about 6 inches in length and roughly an inch wide. One of my aquariums is glass, and the other two are plastic. I don't think i'll ever be able to trust a digital thermometer again.
- Marina Standing Thermometer, Fahrenheit and Celsius Aquarium Thermometer, 11202
- Fish tank thermometer designed to sink to the bottom
- Remains standing in a vertical position
- Accurate and easy-to-read thermometer
- Provides readings in Fahrenheit and Celsius
- Includes safety zone indicator appropriate for most tropical fish
- Manufacture: Marina
- Product Dimensions: 0.5 x 3.8 x 7 inches; 0.64 Ounces
- Editor's Impressions Of The Marina 11202
- Thermometer Accuracy [star rating='4.6']
- Quality [star rating='4.7']
- Value For Money [star rating='3.8']
- Affordability [star rating='4.6']
Marina 11202 Final Thoughts
"Subtracted from the tank."This doesn't bother me as it ws so cheap. I have this thermometer on all my tanks. The suction works for a month at a time- in pool and hot tub circulation. Works well in my betta tank, but provide a couple hours for it to read temp changes. This doesn't bother me as it ws so cheap. And is easily hidden behind a plant. And I just really started to doubt it.
Overall Score
4.0
(32 Points)
PRICE AVAILABLE ON AMAZON
Here Are Some Other Related Aquarium Thermometers
9. YUGE Aquarium Heater with LCD Thermometer Alarm Submersible Water Temperature Meter Temperature Cont...
User Ratings: 38
YUGE First Impressions
"Which is good."My 50+ eyes cannot read a regular tank thermometer without squinting. My only complaint is that they tend to be a one time use. You can not swivle the thermometer to face a certain way. Place it on your aquarium and you are good to go. The lid is textured aluminum, and the suction cups don't stick to that. Now if it falls into a sink full of water, it's not a problem. If the digital display starts to get dim, it's time for a new battery.
- YUGE Aquarium Heater with LCD Thermometer Alarm Submersible Water Temperature Meter Temperature Controller Kit Set Fish Tank Heating
- 【Practical Combination】Perfect aquarium temperature controller kit consisted byYUGE aqurium heater and Submersible Thermometer.
- 【Adjustable Temperature】Heater Temperature indicating scale can be adjusted between 20~34℃(68~93°F).
- 【Totally Submersible Design】Totally submersible, waterproof double insulation, durable and safe. 100W is 10in, suitable for 120 L (32 Gallons) fish tank.
- 【LCD Display】With easy-to-read LCD digital display for this thermometer, you can easily keep an eye on the temperature in your aquarium.
- 【Alarm Function】Automatic high/low temperature alarm function.Great digital thermometer for fish tank and aquarium.
- Manufacture: ZhongShan Hai Lang Electric Factory
- Editor's Impressions Of The YUGE
- Thermometer Accuracy [star rating='3']
- Quality [star rating='3.5']
- Value For Money [star rating='3.5']
- Affordability [star rating='3.6']
YUGE Final Thoughts
"This is perfect."6F all six took about three minutes to read between 88. Love it, it's easy to read and keeps an accurate temp. It works equally well on all of them. You can glue, tape or simply cover the cords in the tank to keep them discreet. Only thing I don't love is how long the cord is. I have to admit I had two reasons for buying six. It is easy to use and install it'disappears' in your tank it is so unobtrusive.
Overall Score
3.9
(14 Points)
PRICE AVAILABLE ON AMAZON
10. Finest-Filters Waterproof Aquarium Fish Tank Thermometer Digital LED Submersible
Finest-Filters First Impressions
"Close enough I reckon!"So far, they're all doing their job in my four tanks and I am quite content. This is my first 5 star review out of many many reviews on Amazon. I used these on a number of my aquariums that have discus fish in them. So versatile, I can read the temperatures literally anywhere. In the right situation this magnet thermometer is the best available. This thermometer is spot on accurate. I tested this in a cup crammed full of ice and some water.
- Finest-Filters Waterproof Aquarium Fish Tank Thermometer Digital LED Submersible
- You are purchasing a submersible aquarium digital thermometer.
- These thermometers can be completely submerged in the aquarium to provide an extremely accurate temperature display.
- This thermometer has a temperature range of 19.9 to 70 degrees Celsius.
- Suitable for salt water and fresh water aquariums, reptiles and green houses.
- Complete with batteries.
- Manufacture: Finest-Filters
- Editor's Impressions Of The Finest-Filters
- Thermometer Accuracy [star rating='2.2']
- Quality [star rating='2.5']
- Value For Money [star rating='2.8']
- Affordability [star rating='2.3']
Finest-Filters Final Thoughts
"Disappointed."I use a small flashlight if I don't want to brighten the area. This doesn't bother me as it ws so cheap. I guess these units do not like saltwater. It worked great and I highly recommend it! If the digital display starts to get dim, it's time for a new battery. It's kind of difficult to hide and keep out of the way. I used these to raise chicks, and in my parrot cages.
Overall Score
3.0
(2 Points)
PRICE AVAILABLE ON AMAZON