The video shows a person's hand holding a green object, which is being used to feed fish in a large aquarium. The aquarium is filled with water and has a sandy bottom. There are several types of fish in the aquarium, including some that are orange, blue, and black. The fish are swimming around and eating the food that is being fed to them. The person's hand is visible in the frame, and they appear to be standing outside the aquarium. The fish are of different sizes and shapes, and they are all actively moving around the aquarium.