The video shows a large black fish swimming in a body of water. The fish has a long body and is surrounded by green plants and rocks. The water is clear, and bubbles can be seen rising to the surface. The fish moves slowly and gracefully through the water, its fins and tail gently propelling it forward. The plants sway gently in the current, and the rocks provide a stable base for the fish to navigate around. The overall scene is peaceful and serene, with the fish being the main focus of the video.