Other fish on the otherhand are a BIG problem in the US For example the
Jumping Carp and
the Snakefish.

Snakeheads are not the big problem they are being made out to be. They have
been around in East Coast Rivers for well over 20 years now and going
against predictions have not forced out native species. They have had very
little impact. The press got ahold of the Snakehead story and blew it out of
proportion without noting they have been around for a long time.