How to catch a BCBS

[Jessie55]

Anyone have any good ways to catch a full grown blue coral banded shrimp.
I have caught other shrimp with pvc stuck into a gatorade bottle but this guy is too big. I cant move my rock to get him as there is way too much rock work and i will break my corals. I only see him once or twice a month which leads me to believe that he must come out at night to hunt. Especially since some mornings i wake up with a missing fish. Im just worried if i set some sort of trap at night i will catch other things along with him and he might be hungry.