You got it right Arothron meleagris. Looks kind of similar to the Stars and Stripes but it's not. Its got quite the chompers on it. Make sure to feed some Snails/Crabs/Clams to get those bad boys ground down before they become an issue. Stay away from feeding krill. It has been linked to Lockjaw in puffers (and other fish). Also make sure to deworm with Prazi (or similar). Puffers are known to come in with IP, although that big boy looks just fine.