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JBL Aquarium Thermometer Slim
Slim glass thermometer for aquariums

Product information sheet
  • Precise measurement and healthy fish: high accuracy glass thermometer for aquariums
  • Easy to install: attach thermometer with suction cup in the aquarium, read off temperature
  • 15 cm long glass capillary (very precise reading), made in Germany. Temperature range from 0 - 50 °C
  • Acid and alkali-resistant suction holder
  • Package contents: 1 aquarium thermometer incl. suction cup
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Price: 7,45 €
Recommended retail price incl. VAT
You can find this item in your specialist and online shop
Dealer close to you

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Product information

Healthy fish and plants
Fish depend on the right ambient temperature because, being cold-blooded animals, they are not able to adjust their own body temperatures. The vital functions of cold-blooded animals decrease with falling temperatures. The right aquarium temperature is therefore very important to ensure the animals maintain their food intake and guarantee a smooth continuation of the metabolic processes.
Depending on the origin of the fish, the temperature they feel comfortable at, varies. With the JBL aquarium thermometer Slim you can monitor the temperature to an accuracy of 1.0 °C. Precise measurement Thanks to a suction cup the glass thermometer can be easily attached inside the aquarium.

Videos
Details

JBL Aquarium Thermometer Slim

Art. no.:
6140700
EAN Code:
4014162614070
Length:
15 cm
Volume packaging:
0.4 l
Gross weight:
20 g
Net weight:
14 g
Weight factor:
1000
Packaging dimensions (l/h/w):
20/218/96 mm

Properties

Animal species: Armored catfish, Arowana, Artemia, Axolotl, Barbels, Bettas, Bichirs/reedfish, Blowfish, Catfish, Cichlids (South America), Clawed shrimps, Corals, Crayfish, Crustaceans, Danions, Discus, Dwarf crayfish, Dwarf shrimps, Flowerhorn, Gill maggots, Gobies, Goldfish, Gouramis, Guppy, Juvenile fish, Killifish, Livebearers, Loaches, Mussels, Newts, Panchaxes, Rainbowfish, Snails, Spiny eels, Terrapins, Tetra, Tropical terrapin, Veiltails, Water turtles, blood parrot cichlids, freshwater butterflyfish
Animal size: For all animal sizes
Animal age group: All aquarium fish
Volume habitat: For all aquariums
Material: Glass, kerosene
Colour: yellow / red / transparent / black

Electronic label / illuminant

Mercury: No
Dimmable: No
FAQ
Why doesn’t the thermometer stick to the pane?

Please clean the pane thoroughly before you install the thermometer. Algae, biofilms and lime can prevent it from sticking. If the thermometer still doesn’t hold, there may be a problem with the suction cup. Due to a material defect some suction cups have bubble-like excrescences which prevent a correct hold. If you own such a suction cup, please contact our customer service, and provide a photo.

The JBL thermometer or the JBL aquarium thermometer is broken. It contains a red liquid. What does the red liquid consist of and is it toxic?

The thermometer doesn’t contain any mercury. The liquid contains an alcohol solution with colouring. It is non-toxic. Both ingredients are quickly broken down by the bacteria in the aquarium. Furthermore the diluting effect should be taken into consideration. The silvery pearls are an iron compound and are therefore harmless. Simply siphon them out of the aquarium.

Blog (opinions & experiences)

Thermometers for the aquarium – an overview

Ensuring the best living conditions for your aquarium pets should always be your top priority. And temperature plays a central role in this. A thermometer is therefore an indispensable instrument...

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Summer heat - But not in the aquarium, please!

If you own an aquarium you’ll be asking yourself what effects the heat has on your aquarium and on your fish. We’ll tell you and explain what to do.

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JBL TV #54 The right water temperature – all the facts about temperature in the aquarium

A conversation with the chief biologist of the Sealife Centre in Speyer about issues which can arise in some water temperatures.

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JBL TV #45: Optimum water values in the freshwater aquarium - 15 parameters explained simply

Biologist Heiko Blessin explains in an easy to follow way what the individual water values mean.

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JBL TV #36: Home moving with an aquarium - How to move smoothly from A to B

If a home move with the aquarium is well prepared, it will not cause any problems.

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JBL TV #28 Part 3: Aquarium care is so easy! Every 2 weeks.

We show you everything you need to do in a 2-week rhythm and how to do it properly.

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JBL TV #28 Part 2: Aquarium care is so easy! Weekly measures

What do you need to do every week? We explain everything that needs to be done once a week.

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JBL TV #28 Part 1: Aquarium care is so easy! Daily measures

How to care for your aquarium properly. What needs doing on a daily basis?

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Caution, Summer Heat! A Reason for Scaremongering?

You can’t prevent the temperature in your aquarium from rising. No matter what measures you take your living room will warm up on hot summer days and can even go over 30° C. So what can you do?

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Cooling Aquariums – Summer Heat in Aquariums

Summer means sweat, because even within our homes the temperature rises steadily. This can also be discerned in the aquarium.

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Display Accuracy vs. Measuring Accuracy - Different Results When Measuring Temperatures

You may find the differences that can arise when measuring the temperature with different measuring instruments and methods, confusing. Most people tend to trust a digital device more than an analog device. Is this justified?

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Winter: Temperature Issues in the Aquarium

Not every aquarium is situated in a heated living space like your cozy living room. The temperature can be as low as 12 - 14 °C at night in some rooms of the house or apartment.

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Lack of oxygen in the morning

The fish stay under the water surface in the morning, gasping for air.

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Testing Water in the Jungle

Our 15 expeditions have taught us something new: In natural waters nitrogens (ammonium/ammonia, nitrite and nitrate) and phosphates are ALWAYS scarce and below the limit of detection. Only when humans have an influence on the natural water, can nitrogens and phosphates be found.

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Outline: Fertilisation in the Aquarium

The JBL plant care concept leads to vigorous and healthy growth even with the most demanding aquatic plants. JBL has all the components you need, whether it’s a fertiliser, a bottom substrate or a fully automatic CO2 fertiliser system.

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Inaccurate water tests – or did I do something wrong after all?

In the aquarium scene we often hear people talking about “accurate” and “inaccurate” tests. But mostly they mean a rougher or finer scaling of the output values.

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Keeping an eye on the most important water values

Professional water analysis sounds very expensive. But the professional water testing in your aquarium or pond at home also works on a high level and above all it is simple and inexpensive.

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Press
03.09.2024

JBL heaters for discus fish

The Discus Championship 2024, held for the fifth time in Dortmund, relies on the reliable JBL PROTEMP s heater thermostats and JBL thermometers with an accuracy of +/- 1 °C to regulate the water temperature for the precious discus fish.

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25.01.2024

How accurate are aquarium thermometers?

Did you know that clinical thermometers are allowed a deviation of 0.1 °C? Most aquarium thermometers have an accuracy of +/- 2 °C.

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Laboratories and calculators

Water Analysis Online Laboratory

Enter your water parameters and get an in-depth analysis of your values in a matter of seconds. You enter your water values – and we analyse! Here you have the opportunity to enter the measured water values directly into the JBL Online Laboratory. This will analyse your values and explain and submit corrective measures.
Reference guide (Themeworld)

Plant growth

Are your aquarium plants growing as well you want? Here’s how to achieve perfect plant growth

Reducing problematic water values

How to lower critical water values.

Diseases

Recognising and treating fish and invertebrate diseases

Marine water treatment

What maintenance does your marine aquarium need?

Daily care

How much daily or weekly care is involved? What are the basic maintenance measures for your aquarium?

Fish species

Which fish species suit your aquarium? What demands do the fish species have?

Invertebrate species

What invertebrate animals are suitable for your aquarium? What demands do invertebrates have? What do you need to consider for their care?

Fish breeding in aquariums

Would you also like to breed your fish? What do you have to consider when breeding?

Adding

How to catch fish properly without causing them stress? How to transport and add fish?

Planning and stock

Which fish are compatible? What do you need to consider when selecting fish?

Substrate heater

Why does a substrate heating promote plant growth? How does a substrate heating work?

Marine water - the water

What exactly is marine water? What is so special about marine water? How to create perfect marine water?

Installation technical items

How and where in the aquarium do you fix and install technical items? Tips and tricks for the installation of all technical aquarium products

Adding water

Here’s how to add water to your aquarium? Adding water without disturbing your aquarium made easy. Tips and tricks for adding water.

Marine water - technical items

What is the difference between a marine and a freshwater aquarium? What is especially needed for a marine aquarium?

Heating and cooling

Why is 25 °C ideal? This is how to heat or cool aquarium water

Aquarium position

Where is the best place for your aquarium? What do you need to consider when choosing where to put it?

The marine aquarium

Holiday at the coral reef - in your own living room! Marine aquariums are the most exciting branch of aquatics

Biotope (habitat) aquarium types

A real piece of the Amazon or, with the Congo, a piece of the heart of Africa. A habitat (biotope) aquarium is a challenge. Can you emulate nature?

Aquascaping aquarium type JBL Dreamscape®

Mountains, valleys, meadows and fish! Create your dreamlike landscape under water with the Dreamscape® aquarium

Jungle aquarium type JBL Rio Pantanal®

A bit of jungle river in your living room. Lively underwater action! No problem with the JBL Rio Pantanal® aquarium

Rocky reef aquarium type JBL Malawi Rocks®

The fish of Lake Malawi are as colourful as the fish in the coral reefs. This aquarium brings a bit of freshwater reef into your living room

Goldfish aquarium type JBL Goldfish Paradise®

Lively goldfish in the aquarium enhance any room perfectly! Invite some new flatmates into your home with this goldfish aquarium.

Tools

There are useful accessories and there are completely useless objects which only cost money and serve no purpose. We’ll list the most important utensils to save you time and make your terrarium maintenance easier.
Download

safety instructions

  • safety instruction for accessories
    • Filename:
      safety_instructions_zubehoer.pdf
    Download
spare parts

suction cup with hole, 5/6 mm 

Suction cups for objects with 6 mm in diameter

Customer reviews

Reviews

Overall rating: 5.0
3 public review(s) for this product.

0 Reviews

3 more reviews in other languages

3 Reviews in other languages

T. Fischer - German
2022-08-25T10:22:13Z

Sehr genaues Thermometer, habe es in fast allen Aquarien!

Saugnapf ist auch noch nie abgefallen!

Top!

SauerlaenderWelskeller - German
2021-05-13T08:47:06Z

Ein schlichtes Thermometer was die Temperatur sehr genau misst!

Hallo!

Ich durfte vor kurzem einige Thermometer von JBL testen. Das Aquarium Thermometer Slim ist ein sehr genaues Thermometer. Es ist schnell einsatzbereit und braucht lediglich mit dem Saugnapf von Innen an die Aquarienscheibe gedrückt werden. Ich benutze diese Art von Thermometer in meinen Aufzuchtbecken und bin sehr zufrieden. Sollte ein Saugnapf jedoch einmal nicht mehr halten kann man auch hier Ersatzsaugnäpfe kaufen.

Das JBL Aquarium Thermometer Slim kann ich daher auch wärmstens weiterempfehlen da es gut und genau misst und optisch auch schick aussieht.

der_ aquariumschrank - German
2021-04-28T17:51:15Z

Funktioniert gut und ist schlicht

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