It's disgusting to see such a giant catfish being slaughtered somewhere . It took years to grow that big and maybe an hour to kill it . If it leaves for that long , leave it be. I think these giant catfish is from the Mekong river and in danger of extinction due to overfishing,This specimen, is widely recognized as the largest freshwater fish .The giant catfish population has fallen by 80 percent in the last 13 years.