Very kewl creatures....but not a species I've ever considered adding. One of the "clients" tanks has a large one and I like seeing it...but I don't think I'd add one to my reef.......too many reports of ggressive attitudes...and I keep several other shrimp species that a coral banded may threaten.
I have a dwarf coral banded shrimp. They are either blue or yellow and stay about 2" max. minus the antennae. I've got a yellow one, and it doesn't seem aggressive at all, but I do not have any other shrimp either. Mine is pretty shy though and it stays in the LR the whole day.