Invasion of the snakehead

Carnivorous creature of the sea feeding
On any fleshly thing land or sea breathing
The labyrinth predator can crawl on land
And like the piranha it will bite a man
The channiformes can stay
out of water for 3 days
They've invaded America
and have become plague
The snakeheads can grow
to be 3 feet long
In seven states found poisoning
the anabantids can't be wrong
Banned from the states like something
from a horror movie
In Asia they are bought
for soup and are tasty