The video shows a large fish swimming in an aquarium. The fish has a spiky back and is brown in color with black stripes. It is swimming near the bottom of the tank, which is covered in small rocks and gravel. There are also pieces of driftwood in the tank, providing a natural environment for the fish. The lighting in the tank gives off a reddish hue, creating a warm and inviting atmosphere. The fish moves gracefully through the water, occasionally brushing against the rocks and driftwood.