Holy CRAP a Giant Stingray. Photograph courtesy Zeb Hogan - Fish experts believe the giant stingray, such as this one in Cambodias Mekong River, is the largest freshwater species on Earth. This specimen measured more than 13 feet meters) long.
Thats an arothron meleagris, aka golden dogfaced pufferfish. Its a rare and expensive fish. not a "mango fish" and the guy holding it there is practically torturing it. inflating in water alone much less air can be dangerous and painful for those guys.