natural rock cave 3d model

Create a large natural 3D aquarium cave hideout for an axolotl. The cave should have a wide, spacious entrance and a large hollow interior where an adult axolotl can completely hide and comfortably turn around. Make the cave look like a natural rock formation with smooth rounded rocks and an irregular organic shape. All edges and surfaces inside the cave must be completely smooth and rounded, with no sharp edges or small openings where an axolotl could get stuck. Make the base wide and heavy so it stays securely on the aquarium floor. Fully 3D printable, sturdy one-piece design, no thin fragile parts, no decorations or plants. Realistic natural stone texture.