The video shows a close-up view of a fish tank with a purple fish swimming around. The fish is seen swimming near the bottom of the tank, surrounded by green plants and a black pole. The fish has a round body and a small mouth, and its fins are visible as it moves. The plants in the tank have long, thin leaves and are attached to the black pole. The water in the tank is clear, and the lighting is bright, highlighting the colors of the fish and plants.