JBL PROTEMP b20
Undergravel heating for freshwater aquariums to promote the plant growth

There are successor products for this item:
PROTEMP b III
  • Undergravel heating cable for ideal plant growth in aquariums: modelled on nature, thermal water flow through the bottom covering, promotion of root formation and growth. For aquariums from 100 up to 250 l (approx. 80 100 cm length)
  • Easy to install: place 4.9 m heating cable in loops on the bottom panel of the aquarium, fasten with suction cups
  • Biological filter: creates seeping nutrition sources in the substrate modelled on nature – ideal supply for the plants. Prevents putrefication zones caused by stagnant water
  • Energy-efficient and safe: silicone coated heating cable with energy-efficient, electronic transformer with 12 V extra low safety voltage
  • Package contents: undergravel heating cable 20 W for aquariums ProTemp, incl. electronic transformer, 4.9 m heating cable, 2 x 2.0 m PTC resistor, 30 x suction cups
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Price: 56,50 €
Recommended retail price incl. VAT

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Product information

Water circulation
Aquatic plants grow better in the wild when they have access to seeping nutrition sources. The plants absorb their food from these sources. The gentle undergravel heating causes the warm water to rise and the cold water, full of dissolved nutrients and minerals, sinks to the bottom. This creates a thermal water circulation, which washes the nutrition directly to the roots.

Easy to install
Place the heating cable in even-sized loops on the cleaned bottom panel when beginning to set up the aquarium. Fasten the heating cable with the enclosed suction cups (slit suction cups). Bring the cold leads of the cable out of the aquarium and connect them to the transformer. You can easily recognise the transition between the cold lead and the heating cable by a marking line on the cable.

Hazard-free use
The heating cable is silicone coated and works with an energy-efficient 10 W transformer and 12 V extra low safety voltage for hazard-free use. The transformer needs to be mounted in a well-ventilated and splash-proof place. The undergravel heating results in a slight warming of the substrate, but should by all means be complemented by a heater (JBL ProTemp s) for warm water fish.

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Details
This product is unfortunately no longer available

JBL PROTEMP b20

Art. no.:
6041600
EAN Code:
4014162604163
Performance:
20 W
For:
100-250 l
Volume packaging:
2.4 l
Gross weight:
462 g
Net weight:
313 g
Weight factor:
1000
Packaging dimensions (l/h/w):
63/235/165 mm

Properties

Animal species: Arowana, Artemia, Axolotl, Barbels, Bettas, Bichirs/reedfish, Blowfish, Catfish, Cichlids (South America), Corals, Crayfish, Danions, Discus, Dwarf shrimps, Flowerhorn, Gobies, Goldfish, Gouramis, Guppy, Juvenile fish, Killifish, Livebearers, Loaches, Mussels, Newts, Panchaxes, Rainbowfish, Snails, Spiny eels, Terrapins, Tetra, Tropical terrapin, Veiltails, Water turtles, freshwater butterflyfish
Animal size: For all animal sizes
Animal age group: All aquarium fish
Volume habitat: 100-250 L (80-100cm)
Material: plastic (PC) / metal / silicone
Colour: white / black

Electronic label / illuminant

Mercury: No
Dimmable: No

Technical Data

capacity from - to:100-250l
capacity tank length:80-100 cm
power output in Watt:20 W
voltage:230 V
FAQ
Why doesn’t the heating cable warm up?

The substrate heating cables of the JBL ProTemp b series heat with radiant heat. Laying these cables on a table you wouldn’t notice any rise in temperature through temperature measurement. Only when the cables are installed below a layer of substrate will the warming of the substrate take place.

May I use the nutrient powder when I have installed an undergravel heating cable?

Yes, despite an undergravel heating cable you can use Volcano Powder because it is only applied very thinly and doesn’t completely cover the cable. The substrate above needs to be porous and coarse enough to enable the water circulation inside.

JBL ProTemp b10-60: What minimum grain size is needed for the substrate to prevent heat building up from the substrate heating cable?

If you have sand, a substrate heating cable is not recommended. It should be used for gravel sizes of 1.5 mm and over.

Can JBL Manado be used with a substrate heating cable additionally, or would that lead to overheating?

I don't see a risk of overheating as long as the substrate heating cable is installed properly with the spacers and is not placed directly on the glass pane.

Blog (opinions & experiences)

JBL TV #49: Saving energy in the aquarium - reducing costs made easy

Yes, we can make energy savings in our aquarium, but not where most people think! In this video we show exactly where and how to save electricity costs.

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JBL TV #24: Aquarium heaters and aquarium coolers

What temperatures do our aquarium inhabitants have in the wild? How can you heat and cool your aquarium simply and effectively?

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Heating in the aquarium. Heating rods vs. outdoor heaters

Our houses aren’t the only things to need heating. Our fish habitats, or aquariums, also need to be kept at a constant, feel-good temperature. This can vary from aquarium to aquarium and needs to be individually regulated.

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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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Time For A Change - Pros And Cons

Think back to your childhood. Your bedroom was a small area for you to let your imagination run free. And unsurprisingly you felt like re-decorating and rearranging it at least every three weeks.

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Installing The Substrate Heater JBL ProTemp Correctly

The advantages for the ecosystem aquarium are obvious and the plants benefit from the nutrient circulation. But how do you install this system in your home aquarium?

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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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Press

27.10.2016

Now even more safety with the free JBL GarantiePlus

Buyers of JBL technical products can rest even more on the safe side now because JBL is offering them a guarantee claim for two additional years free of charge. Just register your product online within the 2-year manufacturer guarantee period.

Find out more

02.01.2014

JBL launches a new heating cable – warm feet sound good, but not for aquatic plants

When discussing substrate heating, people always use the same logical sounding premise that aquatic plants grow better with “warm feet”.

Find out more
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)

GarantiePlus

With the guarantee extension JBL GarantiePlus you secure your extra-long extended 4-year guarantee from the date of purchase for your JBL product. Do not miss out on your extended guarantee claim!

Substrate heater

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

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Heating and cooling

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

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Instructions

safety instructions

  • safety instruction for technical devices
    • Filename:
      JBL_Sicherheitshinweis_fuer_Technische_Geraete.pdf
    Download
spare parts
Customer reviews

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