Are you talking about the mudskipper? Or the newly discovered snakehead fish? I'm not sure if the snakehead fish is real or a hoax.
I have never actually seen a mudskipper, but I have seen plenty of documentaries about odd aquatic life; and the mudskipper is one they talk about a lot.
They are calling the snakehead fish, fishzilla.
the snakehead is real.
Yes, I have seen the snakehead before. It is long and ugly. The one I saw today, is really short, and much uglier. It said something about newly discovered and coming from Asia. Okay, I just went and found the image I found and posted it in a story called Snakehead Fish. EP Link
Is this the one you have seen before?