10 Best Aquarium Thermometers -

Head Veterinarian at Denver Zoological Foundation.
Dr. Jimmy Johnson is a Board Certified Specialist in Zoological Medicine (zoo, wildlife, aquatic animal medicine) with demonstrated history working in academia, client-based veterinary practice, and the museums and institutions industry, also holding a Master of Science (MS) in Veterinary Clinical Medicine/Epidemiology from University of Illinois at Urbana-Champaign.
Dr. Johnson is a Diplomate of the American College of Zoological Medicine (ACZM) and a Certified Aquatic Veterinarian by the World Aquatic Veterinary Medical Association (WAVMA). He is active in zoo, aquatic animal, and wildlife medicine and research, with special interests in novel therapeutics, microbial ecology, diagnostic imaging, dentistry, conservation science and wildlife health assessment, leadership, and veterinary education.
Dr. Johnson is also an active member of the Association of Zoos and Aquariums (AZA), serving as Veterinary Advisor for the Binturong Species Survival Plan and as Co-Veterinary Advisor for the Small Carnivore Taxon Advisory Group. He is also an instructor in the AZA Professional Development Courses 'Foundations of Ambassador Animal Management’ and ‘Animal Transport for Animal Care Professionals.’
Aquarium Thermometers - Comparison Table

Top Customer Reviews
Top Customer Reviews: Marina Floating ...
that Goes down my description. As Another has declared, a cup of suction reacts with and permanently the acrylic tanks broke. I have used he in an outside to line a bomb to air these tubes. It leaves the rough point that will not exit . I line in him with my key and melts with or has eaten entered a tank. I am not happy! If it conceal in a tank, that is a cup to do suctions in a fish?! Some the clearest points in a photo are just residue of some cups of the suction of the substitution has purchased. This mark exited in difference of a one of this thermometer. I have purchased he in July 2017 shipped and sold by Amazon.
Original description:
These floats of the thermometer and he look accurate in his readings, even so a cup of suction avenges with absolutely reeks of chemicals. Has the terribly plastic of the industrial chemical smell strong - quite strong that would rub it has been in my toes after handling writing. It has drenched a cup of suction in several different cup of water for days, and only do my cups smell strongly that chemicals and plastic after emptying a water was.
At the end decided never to leave this cup of suction touches a water in my aquarium. Only I use likes him the afloat thermometer and that law of good appearance.
Has tried this in the cup crammed full of gel and some water. This temperature read the perfect 32 titles....That is to say that calm you aforas the thermometer. A digital thermometer has read 26. It does not think and'll never be able to trust the digital thermometer again.
A cup of suction is bonded in place. You can very swivle a thermometer to affront the sure road. This any problem me so much he ws so cheap.
That is to say $ 2.49. The law adds. And it is easily veiled by behind the plant. I think some people that has said that a short of the suction has broken....Or it leaves the mark....And it is quite sure these critics have acrylic tanks. Probably low quality acrylic.
That is to say the $ 2.49 thermometer that is 100% accurate.
UPDATE: and it try it now this thermometer against the little digital. One when being the very expensive digital. This thermometer is something in accurate.
Can not take this residue has been. It is fixed permanently in an interior of a tank. I actuate Only The FOCUSED to ignite in this tank, and a field of temperature is around 78-80 titles, since maintain Mollies. Has another glass 5-chevron Fluval tank, and any raisin in this tank.
If it is not done for acrylic tanks, a description would have to declare this information. And especially this irritation, a graph of interior in a reading of temperature is so small that it is almost impossible to read.
An only reason has not given these 5 stars are so that my betta to the to to fish did not like him. Man betta the fish is aggressive and territorial and my betta very like this thermometer in his tank at all. Work aggressively in him and like I definite finishing to take he because of that. It is not anything against a quality or precision of a thermometer he, but only something to maintain that it imports that no each betta the fish will see this cual the welcome addition in his tanks.
Tried findingout what a liquid in a thermometer was while it is now in my aquarium. I 75% change of the water and I at present are trying water. According to Google is usually alcohol, a description does not say .
Also tried to take the picture of a glass, is fallen he 3polzades and breaks more subjects. It has attached a photo any road.
Also, has had this thermometer for 7 days...
ORIGINAL DESCRIPTION: I have bought two and in the first place situate them a same tank to compare his temp readings. They have remained in 1 title of the each another, possibly two titles. I can not see some a lot of quite a lot of marks to take the something-read, included when scratch in my hand concealed and looks closely. Ageing the eyes probably touch some part, but included that takes that in consideration, would not describe these that 'easy to read'! I do not maintain tropical, any precise in closely of waters to control temp and does not have a thermometer in a tank at all times, as it is not the breaker of roads in me that some cups of the suctions have not remained bonded in a glass rounded but better in a fund. They float.....And bob around when any bonded on. A glass is very the thin/light compared in an old timer there has been arrests a lot, a lot of years and I are sure much more fragile, will require extra cure when cape. So that only I use it when changing water, so that they look for to be accurate, so that an attaches in the prize was only $ 1.99/free nave, this thermometer will do for my situation but can not be a better election for each set-ups.
Regarding a real law of some laws of thermometer adds, has the digital thermometer in my heater also and is always equal. I use this a concretely for changes of the water and a piece is quite sensitive and changes in the minute to aim correct temp. Even so of my Betta enjoys leaves in his tank constantly.
Opens This concrete product comes with a cup of suction that in fact recommends not using, or at least not continuing your tank at all times. It has remarked it begins to leave the permanent mark in a tank he.
UPDATE:
is broken to pose in a bowl. My failure but I do not lose it . :)
UPDATE 2:
has Substituted mine 1 fish of bowl of chevron (walmart) for the 1.75 chevron (Ikea) and has purchased this same exact thermometer for $ 1.68 in my venue walmart (Tiled, Tx). A wall of a new bowl is flat and some clave of cup of the suction well.
Top Customer Reviews: Zacro Pack of 2 LCD ...
UPDATE: Because of a low cost, no the problem that contacts a vendor or routing a cape working thermometer behind in Amazon. I have written only you are like the smallest loss. Even so, Lucy in Zacro read this description and emailed me. I have not seen an original message (was in spam) and clue up and emailed again, which has seen, that apology profusely and offers the road the new thermometer. Instead it issues the new container of two, so much duquel work. Then it follows up again on that, asking was arrived and was very. I am really, really impressed with Zacro initiative of service of the client and I are changing this in the five-stars to estimate for this reason.
These so many thermometers aim the temperature that is in a title of one very-digital some used before. I can not say which are one the majority of accurate and no very cured. A title up or down is not very also that imports since aim for a half of my fish is preferred field . Knowing that a temp is in this field and the constant of stays is even more of entity in me and my pets have put.
These are a perfect measure to be easily read while it does not listen obtrusive.
One perfects; a no. Has bought a two group of thermometers. I besiege one in the one of freshwater the tank and he are doing perfectly; I besiege one in the saltwater tank. Initially it perfects. Then it is begun to give the low reading, and is not that it reads a correct temperature. I verified it against two other thermometers that is accurate. I guess in the the these units any likes them to them to the salt water. Disappointed.
Before east has had thermometers of float, which was impossible to read - am not also preoccupied of exact readings, but precise the to do sure my heater is not broken so that it can take it very cold in my house in winter.
Even If a life of stack is the pair of month, is worth it for me - once take in the warmest temperatures, will pose an exposure was and ignite on when required, which doubt I of these stacks am very economic.
Update 12/30: I am using he for more concealed 2 month now with some same stack and exposure ON at all times - will be to buy another 1 for a new aquarium that I setup.
Test does of the cup of suction for a sensor and also for a monitor.
A cape is to take to straighten (while it is more, ugh) but one spends through the cup of suction is the good touch.
No the back light but that it is VAL for me. Only I want to gander from time to time.
Any alarm or. I suppose it it has fished very sensitive could wants big alarms and of the decreases.
Mostly wants to verify my temp against of the bonds in launching and float (was) in of the thermometers.
Highly recommend these - or something - so this has aimed my heater of the water of upper shelf was quite 4F big that is to say reading - and in or in a max temp for the majority of fish. It was in 83.3f when a dial in a heater has read 79F
liked me one of two-the group has it so posed one in the each final of one 55 aquarium of chevron to do sure a temperature is realitvely looking - especially of a heater is in or finals.
Top Customer Reviews: Aquarium ...
Update 10-27-19
has Bought another any to long with which and there both do both perfectly. Has does not have to that included change some batteries neither. Like this far a quality of this element surprise. Still to good sure recommend this partorisca all the owners of fish.
And ATTENDED.... THERE have it MORE!
Comprises an extra battery for when an original dies like this calm does not have to that go looking for an immediately! I have seen some people complain in that but is anything I supposition. If really calm can not find the something to store a tiny extra battery then has not been that to say already.
Esperanza so only does not have to that change a battery because it is the beast to open . I have forgotten it avenges with the battery in him because they send an extra battery.
In a booklet of instruction has said, recalibrate a unit if a probe of temperature is changed. It has not had anything to take an attentive temperature out of, as leave it he so that it was, that assumes that both probes were equal.
Looks this little thermo is like this near of attentive as you go to take.
MODIFICATION Nov 4, 2019
A vendor contacted roughly one malfunctioning red thermometer and sent the free substitution. We gave me To us also some hints to fix an old one but he have not done takes well. Some works of the substitution perfectly finds, so only like a black version. A compartment of battery is tight and resists a battery in place with good contacts. Any @subject has received of then. Fish and me happy. Service of perfect client. Thank you. Changed to 5-stars now. Black a do one like the charm.
Top Customer Reviews: VIVOSUN 1-Pack LCD ...
Estaca Original: it was not if a battery has died or if a device is faulty, but an is not doing at all. Some batteries have come preinstalled, and a one this is doing was on in a container. Has think that saved the little has bitten partorisca go with these in a some have purchased previously. But it looks I am spending two times so much partorisca substitute a one this is to arrive faulty (any sure well a process of turn in this prize).
Dipped him in a same tank at the beginning partorisca see the one who attentive was and his so only differed for 0.1 terracings F I so that it thinks that is very good! I have found that a variac. In reading of temperature among these and my old method was in time 4 terracings so that it is the big upgrade in my opinion!
PRO Is:
Petit and easy to use
Very attentive
Low prize
WITH east:
Glowing backlight LCD would be the good addition!
Top Customer Reviews: REPTI ZOO Reptile ...
Update: the vendor offered me the repayment of HALF a price of compraventa for the product that failed the day. Highly recommend it eschew Reptizoo period, knows is.
Top Customer Reviews: Aquarium ...
Pros: Easy to use and read
Gilipollas: aesthetic
In general partorisca of the money highly recommends.
Top Customer Reviews: AQUANEAT 1 Pack ...
An element has shipped quickly, and there was a next day.
Top Customer Reviews: Jansamn Brewing ...
As I can see, some readings are quite attentive. It say to 1°F. This in spite of, a more under a reading, a hard plus is to see. If you can not look to see that it splits of some stairs is actuated, shine the flash light on he in a corner.
Does not forget to take the clear protective film in a side forward. He the easiest plot to read a temperature!
Top Customer Reviews: Digital Reptile ...
Ossia Mine 2nd an of of the one of the east any hygrometer of thermometer of name combos, a partorisca each gecko tank. You both excellent and is economic in comparison to some frames of big name. I want that a backside can be flipped was like the little stand of has fallen partorisca he, or also has the magnet has the object of metal partorisca stick it to. A magnet is not a More adds them, but resists a weight of a device. So only be conscious that clash his in a slightest will fall off it. Also it likes that it takes of regular battery in place of battery of key. But ossia the personal thing , I just aversion batteries of key. Any one maintaining reptilian, does not squander your money in a mark partorisca appoint some. These do like this well in of means it a prize. And they all, mark of name or no, has come from/come from probably a same factory.
Any one happy in this compraventa. But it ships súper fast and was a lot of economic, for this some 3 stars in place of the 1 star.
Ossia Mine 2nd an of of the one of the east any hygrometer of thermometer of name combos, a partorisca each gecko tank. You both excellent and is economic in comparison to some frames of big name. I want that a backside can be flipped was like the little stand of has fallen partorisca he, or also has the magnet has the object of metal partorisca stick it to. A magnet is not a More adds them, but resists a weight of a device. So only be conscious that clash his in a slightest will fall off it. Also it likes that it takes of regular battery in place of battery of key. But ossia the personal thing , I just aversion batteries of key. Any one maintaining reptilian, does not squander your money in a mark partorisca appoint some. These do like this well in of means it a prize. And they all, mark of name or no, has come from/come from probably a same factory.
Top Customer Reviews: VIVOSUN 4-Pack LCD ...
NOTE: water of Gel is roughly 32.2 deg, if it was 32, would be the SOLID blockade of gel.
All was quite Near for the tank of fish and other uses.
Vega OBie

Head Veterinarian at Denver Zoological Foundation.
Dr. Jimmy Johnson is a Board Certified Specialist in Zoological Medicine (zoo, wildlife, aquatic animal medicine) with demonstrated history working in academia, client-based veterinary practice, and the museums and institutions industry, also holding a Master of Science (MS) in Veterinary Clinical Medicine/Epidemiology from University of Illinois at Urbana-Champaign.
Dr. Johnson is a Diplomate of the American College of Zoological Medicine (ACZM) and a Certified Aquatic Veterinarian by the World Aquatic Veterinary Medical Association (WAVMA). He is active in zoo, aquatic animal, and wildlife medicine and research, with special interests in novel therapeutics, microbial ecology, diagnostic imaging, dentistry, conservation science and wildlife health assessment, leadership, and veterinary education.
Dr. Johnson is also an active member of the Association of Zoos and Aquariums (AZA), serving as Veterinary Advisor for the Binturong Species Survival Plan and as Co-Veterinary Advisor for the Small Carnivore Taxon Advisory Group. He is also an instructor in the AZA Professional Development Courses 'Foundations of Ambassador Animal Management’ and ‘Animal Transport for Animal Care Professionals.’