The video shows a large fish tank with a variety of fish swimming around. The tank is filled with water and has a sandy bottom. There are rocks and plants in the tank, providing a natural habitat for the fish. The fish are of different sizes and colors, and they swim around the tank, occasionally darting in and out of the rocks and plants. The water is clear, and the lighting in the room reflects off the surface of the water, creating a serene atmosphere. The fish seem to be healthy and active, and they move around the tank with ease.