If you want a thermometer that does not permanently sit in your aquarium, this is your best choice. A tool that is used to measure temperature. However, having to tilt my head to read the horizontal display coupled with the price saw the Vee Gee thermometer take the top spot. It is fantastic as it keeps the temp within 0.1C. Now, all that’s left to do is glance through the front of your aquarium to read the temperature. I just can not find one that is even close to being accurate. One of the best features of this thermometer is the fact that it stores data. To you or me, warm or cold water looks identical. What do you suggest? There is no guessing – you just read what’s on the display, and that’s your temperature. For more information, please check our, rCraft TOM Temp Alert Digital Thermometer for Aquariums, Marina Floating Thermometer with Suction Cup, American Thermal Horizontal Aquarium Thermometer, 2. Not when you can grab the reading from a digital thermometer in seconds. It’s very robust as well and is just about unbreakable. Please note, we are currently doing an indepth review on heater controllers, this recommendation may change. I can’t thank you enough for this review. However, plenty of reviews report rusting after just a short while. I’m glad I could help. Display unit cannot be easily mounted to the aquarium. To win this category, the thermometer had to be accurate, affordable and easy-to-use. I appreciated that the Marina Stainless Steel Thermometer could hook onto the glass edge of your aquarium, allowing it to neatly hang. By attaching the suction cup to the glass of your aquarium, you can be confident that your thermometer will be in the same place the next time you check the temperature. If anyone else can think of one, I would love to review it. I have been keeping fish for over 30 years. As for spreading disease, many fishkeepers use either a potassium permanganate or isopropyl alcohol dip followed by a rinse in fresh water on things like nets that get shared between tanks. They’re not affected by the ambient room temperature. If you’re looking for the best aquarium thermometer, you’ll need to look in this category. By floating, the thermometer will take up less room in your aquarium. To put it simply, every time I wanted to check the temperature on a floating thermometer, I had to use my hand to turn it to face me so that I could read it. However, whether shooting through the glass or top down on our tanks, we couldn’t match the results to our test equipment with either model, no matter how much we played with the settings. These are overkill for most freshwater tanks so I don’t recommend them for the average user. I also appreciated that it came in different styles, allowing the sticker to be mounted horizontally or vertically. 5 years is impressive in that environment. There’s also a clearly marked safety zone that shows the … We have tested two infrared thermometers, the Fluke 62 and a cheaper Etekcity 1080. Both High & Low Temp Alert Only (Air/Room). I mean, an accurate reading is great and all, but what if it takes 15 minutes to achieve? Lifegard Aquatics’s model had frustratingly vague instructions and was overly expensive while the Fluval 2in1 didn’t measure the temperature inside the tank, it instead measured the temperature of the glass. Obviously, this presented a problem: If I put my test equipment in a hot spot, and the thermometer I was testing in a cold spot, it would return a very different reading.