In the video, there is a large fish swimming in a green tank. The fish is moving around, and its mouth is open. The water in the tank is clear, and the fish is the only visible creature in the video. The fish appears to be healthy and active, and the tank seems to be well-maintained. The fish's scales are shiny, and its fins are moving smoothly as it swims. The tank is brightly lit, and the green color of the water is vibrant. The fish's movements are graceful and effortless, and it seems to be enjoying its environment. Overall, the video captures the beauty and tranquility of the fish in its habitat.