The video shows a person's hand touching the glass of an aquarium. Inside the aquarium, there are several fish swimming around. The fish are of different colors, including white, black, and blue. The aquarium appears to be well-maintained, with clear water and no visible debris. The person's hand moves slowly, allowing the fish to swim around it. The fish seem to be curious and approach the glass to investigate the hand. The lighting in the aquarium is bright, highlighting the colors of the fish.