The image displays an interior view of an illuminated freshwater aquarium

The image displays an interior view of an illuminated freshwater aquarium. The substrate consists of dark, irregular gravel with small, blade-like green aquatic plants sparsely distributed across the left foreground. A prominent piece of highly textured, reddish-brown driftwood occupies the right portion of the frame, showing deep crevices and an uneven surface. Aquatic fauna includes five fish. One small, horizontally striped fish is positioned in the mid-left. A bright red-pink fish swims horizontally near the upper right surface. A darker, small fish is observed swimming in an inverted orientation near the center top. Two other less distinct fish are partially visible in the upper background. Aquatic flora includes several rooted green plants behind the foreground, and a cluster of reddish-pink plants is visible behind the driftwood. An internal aquarium filter, black in color with 'AQU' visible on its side, is positioned vertically on the far left. A yellow hose or tube is present in the upper right background, against a plain, light-colored backdrop. No human figures or discernible city features are visible. The location within Sofia, Bulgaria, cannot be identified from the contents of the image.