If I were looking for such specific info, I would contact Najakeeper, in the Venomous section. He has quite an extensive collection of Hots. I believe that he has some False Water Cobras. Or maybe they are Water Cobras if there is such a thing.
I believe he even did a video on feeding those snakes some fish if I recollect. Not sure if it was YouTube or just for the forum.
Give him a shout, he's the man!