The video shows a group of fish swimming in an aquarium. The fish are of different sizes and colors, and they are swimming around the tank, occasionally brushing against the plants. The aquarium is well-lit, and the water is clear, allowing for a good view of the fish and their surroundings. The fish seem to be healthy and active, and they are swimming in different directions, sometimes crossing paths with each other. The plants in the aquarium are green and appear to be well-maintained. Overall, the video provides a peaceful and calming view of the fish in their habitat.