The video shows a group of fish swimming in a large tank. The fish are of different sizes and colors, with some being darker and others being lighter. They are swimming around a large piece of driftwood that is in the center of the tank. The water is clear and blue, and bubbles can be seen rising to the surface. The fish are moving in different directions, some swimming towards the camera and others away from it. The driftwood is brown and appears to be covered in algae. The fish are swimming in and out of the frame, creating a dynamic and lively scene.