The video shows a close-up of a white fish with pink fins swimming in an aquarium. The fish is moving slowly and gracefully, with its fins gently undulating in the water. The aquarium is well-lit, and the fish's scales reflect the light, giving it a shiny appearance. The background is dark, which contrasts with the fish's bright coloring and makes it stand out. There are no other fish or objects in the aquarium, and the focus is solely on the white fish.