The video shows a large fish tank with several rocks and bubbles. The tank is well-lit and the water is clear. There are no fish or other creatures visible in the tank. The rocks are of various sizes and shapes, and they are arranged in a way that creates a natural-looking environment. The bubbles are small and numerous, indicating that there is an aeration system in place to keep the water oxygenated. The tank appears to be clean and well-maintained.