No more ones that got away stories because this one didn't get away. The offricial cap:
A 646.2-pound (293 kg) Mekong giant catfish, netted in Thailand, may be the largest freshwater fish ever found. The fish was documented as part of a World Wildlife Fund-National Geographic project to identify and study and conserve freshwater fish around the world that exceed 6 feet in length and 200 pounds in weight.
I guess they didn't conserve this one though?
Anyway, good eatin.