The bow fin is an ancient fish similiar in characterstics but not related to snakeheads. They are found East of the rockies from Florida up to Canada I believe. They tend to live in swampy oxbow type waters and are highly predatory eating just about anyhitng they can get ahold of. I have never kept one but I have observed a 2 footer in the aquarium at Bass Pro Shops on several occasions and it seems to be a rather inactive fish. It is always suspended in the same spot every time I visit the aquarium.
Not much but I hope it helps!