I had a striped head shark fish. One day, it jumped out of the tank because it was hungry. I didn't find it for a week, and it had just died.
I went to Walmart to get another one, and found out that they had been outlawed. Turns out, these things are also known as "land walkers". Someone in Maryland let a few loose in a river. They bred, and took over the entire river. Once they had eaten all of the fish in that river, they were able to flop to the next body of water. Because of their ability to live without water for extended periods of time, draining the lakes and ponds wasn't a help. They had to actually poison all of the water killing any remaining fish,
You meen snake head fish