The video shows a close-up of a fish swimming in an aquarium. The fish is orange and white with long fins and a pointed nose. It swims around the tank, which is filled with green plants and rocks. The fish appears to be healthy and active, moving smoothly through the water. The aquarium is well-maintained, with clear water and no visible debris. The fish's movements are graceful and effortless, and it seems to be enjoying its environment.