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JBL ProTemp b10

Code: 6041500
  • £35.99
Item in Stock   |   Usually dispatched within 24 hours

Modelled on nature, thermal water flow through the bottom covering, promotion of root formation and growth. For aquariums from 50 up to 120 l (approx. 60 -80 cm length)Easy to install: place the 3.6 m heating cable in loops on the bottom panel of the aquarium, fasten with suction cups

Biological filter: seeping nutrition sources 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: under gravel heating cable 10 W for aquariums, incl. electronic transformer, 3.6 m heating cable, 2 x 1.8 m PTC resistor, 20 x suction cups

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 under gravel 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 under gravel 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.

What dose a heater do in a fish tank?

A heater in a fish tank is used to maintain a consistent, appropriate water temperature for the fish and other aquatic life living in the tank. Different species of fish have different temperature requirements, so it's important to ensure that the water temperature in the tank is within the appropriate range for the specific type of fish you are keeping.

In general, most tropical fish need a water temperature in the range of 24-28 degrees Celsius. Coldwater fish, such as goldfish, may prefer water that is slightly cooler, around 20-23 degrees Celsius.

A heater in a fish tank helps to maintain a stable water temperature by using an electric heating element to warm the water. The heater is typically placed inside the tank and connected to a thermostat that measures the water temperature and turns the heater on or off as needed to maintain the desired temperature.

It's important to monitor the water temperature in your fish tank regularly and to adjust the heater as needed to ensure that the temperature stays within the appropriate range for your fish. If the water temperature gets too cold, the fish may become sluggish and inactive, and may be more prone to illness. On the other hand, if the water temperature gets too hot, the fish may become stressed and may also be more prone to illness.

Payment Methods

We accept all major Credit and Debit cards, and these are processed via a third party payment gateway called Opayo. 

We also accept payments via PayPal, PayPal credit, Clearpay and Klarna which are both pay in 4 interest-free instalments. 

Also, you can pay using Android and Apple Pay if you are using a compatible device. 

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.


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Next Day Shipping Upgrade - Cut off is at 2:00 pm

Orders after that time will be processed the next working day


Please Note: We only deliver ponds and pond plants on our own delivery vehicles!

The blue highlighted area on the map below is where we deliver on our own vehicle! Unfortunately, if you are not in one of these postcode zones we are unable to deliver certain items such as plants, small glass items and selective other products.



We offer a few different delivery options depending on the size and value of your order.

Orders over £50 qualify for free mainland UK (excludes Northern Ireland) delivery which will arrive within 3-5 working days of the order being processed.


Residents of Northern Ireland, please provide your EORI or XI Number.

If you do not have one, please follow the information at


Orders Below £50 in Mainland UK will be charged a standard delivery fee of £5.99.

Additional Shipping Charges

For any orders that do not include Aquariums, the below is charged:

Next Working Day Parcel Delivery to Mainland UK - £7.99 OR £2.99 if the order is over £50

Standard Parcel Delivery to Northern Ireland £8.99

Standard Parcel Delivery to Scottish Highlands & Islands £9.99

Standard Parcel Delivery to Jersey & Guernsey £12.99


For all Aquarium deliveries (Excluding biOrbs & Smaller Aquariums), the below is charged:

Next Working Day Pallet Delivery - £20

2 Hour Booking Slot Pallet Delivery - £20

Pallet Delivery to Northern Ireland - £45

Pallet Delivery to Isle of Wight (PO36 and Above) and Scottish Highlands (AB, PH, IV1-36, IV, KW1-14, KY, PA21-41) - £45

Pallet Delivery to the Scottish Isles (KA27-28, PA60-90, ZE, JE, GY, IM, IV40-56, KW15-17, PH42-44, PA20, PA42-49) - £120

Pallet Delivery to Outer Hebrides (HS) - £140