Purple Reef Lobster Safe?

[4lti7ude]

Well its been a couple days and hes made a little hiding spot in the corner at the back. I can see him too, which at least makes him a little enjoyable.
Haven't seen him ever leave there, and I am in front of my tank all day.

Hes come out to grab bits of brine shrimp that come back there, but so far hes left the Blenny and Clown alone.
They both sleep in a hole at the very top of the tank. The lobster doesn't seem to be able to get up.

Does anyone know a trap for him tho?
I was thinking of the bottle with a string on the end, but I don't know what to bait it with.
I cant seem to find anything online to much about this lobster either.
Will a boiled shrimp work?