The video shows a close-up of a fish swimming underwater. The fish is moving around a branch that is partially submerged in the water. The water is clear, and the fish is visible through the water. The fish is swimming around the branch, and its movements are smooth and graceful. The branch appears to be a fallen tree limb, and it is partially covered in algae. The fish is a medium-sized fish with a sleek body and a shiny, silver color. The video is shot in a natural setting, and the sound of water can be heard in the background.