Smooth Hammerhead
Use the open space around the target; tight tunnels make its turns dangerous.
Best capture method
Tranquilizer + drone. Catch stars measure quality, not rarity. Bring the target back alive whenever its rules allow it, and reserve Recovery Drone charges for large compatible fish.
Restaurant use
Smooth Hammerhead Sushi. Enhance this dish only when its ingredient route is repeatable; a stable Fish Farm supply beats a one-night spike.