The video shows a person's hand moving around in a fish tank, picking up and examining different corals. The person then places the corals back into the water, where they are seen floating. The tank is filled with various types of corals and fish, creating a vibrant underwater scene. The person's hand is visible throughout the video, and they appear to be carefully handling the corals, possibly to inspect them or to place them in a specific location within the tank. The corals vary in color and shape, with some being round and others more branch-like. The fish in the tank are of different sizes and colors, adding to the diversity of the scene. Overall, the video provides a glimpse into the world of coral reefs and the care that goes into maintaining them.