This fish does look like a Hemiancistrus species that I collected from the Rio Yi in Uruguay a couple of years ago. Unfortunately I have not been able to locate them on subsequent trips to the Yi. The Yi is a tributary of the Rio Uruguay, but the largest of any of these that I have seen is 4 inches ...

A little bit about the Leiarius Pictus. They will grow to two feet in length in a year with enough room and ample food availability. I provided a 12 inch specimen to our local public aquarium last September and it is now over 2 feet in length. As far as eating your Rafael Cat. While it is posssible ...