You guys should check out national geographic they recently had a show about snakeheads in the United States. In the show they were fishing for snakeheads by looking for the ball of eggs or fry that hang on their backs. It was visible when they came up for air. As far as killing them goes it is my personal opinion that you should only kill what you intend to eat. Take the carp for example: I still hear people say that the minnesota dnr says you should kill all non-native carp when infact the regulations state that it is illegal to wantonly waste any fish. As with most invasive species, the snake head is here to stay