G. Smithii - You know... I've been trying for months to get a positive ID on what those little buggers are. Consensus says some sort of paly. Either way, don't seem to be hurting anything and they add something to look at until I'm able to fill up with other corals.
ck1 - No, I ordered mine from TampaBaySaltwater at the same time I ordered some LR for a different tank. I'm pretty sure that I have another mantis in that tank now, too. Hitchhiked in on the rock. I've never seen it, but it's causing mass destruction in the tank and I can hear it, too! That one has already had about 2 dozen each of snails and hermits and 2 Fire Shrimp, Cleaner shrimp, emerald crab, porcelain crab and decorator crab. Haven't been able to trap him yet, though. Too well fed to fall for it, I'd guess!