How to propagate and encourage a natural color morph?

[Sierra_Bravo]

I have some variety of monti palawanensis, however it was sold to me as a normal red capricornis. It's developed a nice little bluish-green streak of color on one section as seen in the picture below.

If I wanted to see if I could propagate that section in order to create a new colony that has that characteristic throughout, how would I go about fragging it, and would it work?

Edit: I pulled a bit of the blues out of the image post-processing to try to get it to more of what I see in the tank - this is pretty close with my my light towards 18-20K

 

[Phelipe's Ocean]

That is incredible! Almost looks like some sort of grafted cap. Most likely both colors will appear again because of its natrual genetics.