• Underfloor heating ensures an almost natural thermal circulation of the soil substrate and thus promotes the transport of nutrients to the roots of plants.
• Easy installation: simply place the heating cable in loops on the bottom glass of the aquarium and secure it with the suction cups
• The rising of heated water is followed by an influx of cooler water, thus ensuring water circulation in the substrate. The substrate also acts as a natural filter for the aquarium.
• Large diameter heating cable for increased efficiency, safe 24V voltage, and high-quality power supply. Spring clips allow for tool-free mounting.
• Contents: aquarium underfloor heating, electric transformer, heating cable with hot/cold conductors, suction cups for fixing.

Water Circulation:
In nature, aquatic plants grow best when they have access to nutrient-rich runoff. The plants feed on this runoff. Due to the low temperature of the soil, the water rises and the cold water, full of nutrients and dissolved minerals, sinks, creating a thermal flow that brings the food directly to the roots.

Simple installation
: Lay the heating cable in even loops (in the area where the plants will be placed) on the cleaned bottom glass. Secure the heating cable using the provided slotted suction cups. Remove the two cold conductors from the aquarium and connect them to the power supply. The separation into cold and hot conductors is clearly visible thanks to the black lines on the cable.

Safe Use:
For safe use in the aquarium, the heating cable is silicone-coated and operates with a 24V low-voltage power supply. Install this power supply in a well-ventilated location protected from splashes. The submersible heater provides gentle warming of the substrate but should be supplemented with a submersible heater (JBL ProTemp s) for tropical fish.
The power supplies become warm during operation; this is normal and purely technical.

Tip:
Those who don't like using suction cups to fix the heating cord can fix it permanently with small drops of silicone and then remove the suction cups.

Contents of the different sizes of underfloor heating systems: (electrical cable length always 1.5 m)
JBL PROTEMP b 10 III: 3.6 m heating cable, 2 m cold conductor, 20 slotted suction cups.
JBL PROTEMP b 20 III: 4.9 m heating cable, 2 m cold conductor, 30 slotted suction cups.
JBL PROTEMP b 40 III: 7.0 m heating cable, 2 m cold conductor, 30 slotted suction cups.
JBL PROTEMP b 60 III: 9.0 m heating cable, 2 m cold conductor, 40 slotted suction cups.