The video shows a person's hand reaching into a fish tank and petting a fish. The fish is white with a yellow tail and appears to be enjoying the interaction. The person's hand is visible in the foreground, while the fish is in the background. The fish tank is filled with various other fish and aquatic plants. The person's hand is gentle and caring as it pets the fish. The fish seems to be swimming towards the hand, indicating a sense of trust and familiarity between the person and the fish. The video captures a serene moment of human-animal interaction.