Using heat cables generates gentle, warm currents from the base of the aquarium. These currents ensure a slow and constant exchange of water and nutrients with the topmost levels of water. This makes sure that plant roots benefit from an adequate share of the nutrient rich water and as such avoids any rotting of plants at the bottom of the tank.
The JBL Pro Temp Basis 120 and 250 are under gravel heating cables for aquariums. Designed with quality, safety and performance in mind they are an excellent choice for the keen aquarium keeper.