The video shows a person's hand holding a white net with a square mesh pattern, submerged in a blue tank filled with water. The person is using the net to remove a yellow sponge from the tank. The sponge appears to be attached to a rock or coral and is being gently pulled out of the water. The person's hand is visible, and they are wearing a glove. The water is clear, and there are no other objects or creatures visible in the tank.