Use the uploaded ocean sunfish as the exact locked identity, anatomy and material reference. Crea...

Use the uploaded ocean sunfish as the exact locked identity, anatomy and material reference. Create one uninterrupted eight-second seamless anatomical motion loop on the existing pure black #000000 matte with a completely fixed camera. Keep the whole blunt body, dorsal fin, anal fin, pectoral fins and natural clavus fully visible inside the central 70 percent of frame. The fish remains centered with no traversal. Begin with fin motion already active. Animate slow opposing oscillation of the dorsal and anal fins, small independent pectoral-fin paddles, subtle gill breathing and one restrained four-degree curiosity yaw that returns without exposing a different side or changing silhouette. The massive body resists the fin motion and stabilizes naturally. Preserve the exact eye, body profile, fin proportions, blue-grey palette, highlights and premium painted 2.5D surface. During the final 1.2 seconds return continuously to the exact opening pose, fin phase and velocity for direct seamless looping. NEGATIVE PROMPT: No new background, water scenery, particles, bubbles, camera movement, zoom, cut, traversal, static picture slide, normal fish tail added, long tail, inflated sphere, pufferfish transformation, extra or missing fins, mouth speech, comic expression, large turn, flip, spinning, direction reversal, opacity fade, morphing, blur, crossfade, ghost body, freeze, text, logo, UI, reels or visible loop reset.