DESCRIZIONE
Aquarium cover segment with a lighting and heating device has at least one cavity (A), dry inside, situated within the tank (2) contour, immersed in water and reaching down much below the nominal water level (PW) in the tank (2), with at least part of the wall (B) or floor (C) that limits the cavity under water transparent. The dry cavity (A) contains an output gap (L), situated inside the tank (2) and under the water level (PW), for the light emitted from the lighting and simultaneously heating instrument, from which the light and infra-red radiation goes through the transparent wall (B) or the floor (C) of the cavity (A) directly into the water in the main water space of the aquarium, in addition the radiation transmission zone to the aquarium water is washed with water in the aquarium and is located much below the water level (PW) in the aquarium tank (2).