rocky aquarium rock 3d model

An isolated, massive, and wide rock formation designed as a standalone 3D printable asset for an aquarium. The rock has a rugged, ancient, natural stone texture. The back is a perfectly flat vertical cutaway face, revealing a large, hollow internal cavern. The summit of the rock is not a deep crater, but rather a large, relatively flat plateau surrounded by a distinct, raised rocky rim, forming a shallow basin specifically designed to hold a layer of sand. Crucially, the front and rugged sides of the rock face feature multiple distinct, natural-looking swim-through holes and archways that connect directly to the internal cavern, clearly showing various entrances and exits for fish in addition to the open back. The geometry must be sturdy with thick walls.