spiny blue lobster...anyone have one

just went to the LFS for some coral(got a nice green star polyp rock) and also some food...and in one of the tanks was a tiny spiny blue lobster, I had looked into them before but could never find one as small as I wanted...so now I have one, hes about the size of my skunk cleaner and peppermint shrimp, a little smaller maybe...anything I should know about this guy...he's just to cool to look at, I realize hes nocturnal, but so are my emerald crabs and peppermint(at least thats how the act) but I still see them on a daily basis out in the light, plus they help clean stuff up...thanks in advance for any info

 

just to let everyone know, I just got done acclimating it and put it in the tank, also its the time of night I turn off my 20,000K light and let just the actinic on for a bit before lights out...as soon as the white light went off he began stuffing his face, before that he was just hanging out on the rock, but now he's feasting...funny little critter though, the damsel came to check him out and he fanned his tail out an stuck it straight up...they decided it was boring and left it alone...they don't bother my shrimp and this lobster is a tank compared to them...a lot less delicate looking...