The video features a close-up shot of a black Betta fish with long, flowing fins and tail. The fish is swimming in a tank with clear blue water. The Betta fish has a vibrant blue and green coloration on its fins and tail, which stand out against its black body. The fish moves gracefully through the water, its fins and tail undulating gently. The video captures the beauty and elegance of the Betta fish in its natural habitat.