The video shows a fish swimming in a fish tank. The fish tank is filled with green plants and leaves. The fish is swimming around the plants and leaves, and the camera is following the fish as it moves around the tank. The fish is small and appears to be a tropical fish. The tank is well-lit, and the water is clear. The plants and leaves are of different shades of green, and some leaves are brown. The fish is the only visible creature in the tank.