This is a close-up, top-down view of the substrate and a decorative element within an aquarium

This is a close-up, top-down view of the substrate and a decorative element within an aquarium. The substrate is composed of small, rounded pebbles in various shades of brown and yellow, with some larger, smooth, yellow stones interspersed. The primary focal point is a tall, irregularly shaped decorative object, appearing to be made of a dark, porous material with patches of reddish-brown and greenish growth. It has a layered, somewhat organic texture. Several small, dark objects, possibly snails or small aquatic creatures, are visible clinging to the decorative object. In the background, there are several smooth, bright yellow objects, one of which has a star-like, irregular shape. A hint of a bright orange object, possibly a fish tail, is visible in the lower left corner. There is no visible indication of Volgograd, Russia, or any urban environment.