The video shows a small black and white catfish swimming in a fish tank. The tank is filled with green gravel, and there are rocks and plants inside. The catfish is seen swimming around the tank, exploring its surroundings. The fish tank appears to be well-maintained, with clear water and no visible debris. The catfish moves smoothly through the water, its fins and tail gently propelling it forward. The lighting in the tank highlights the catfish's colors and the green gravel, creating a serene underwater scene.