I forgot to mention get a pvc pipe as a burrow. I know some people hate them but they need it in the long run to prevent shell disease (keeps the light out during a molt).
http://www.canreef.com/vbulletin/sho...ghlight=mantis
Here are some pics of my japiconus tank which is like a pea****. My pea**** lives in a 54 corner bow reef tank so I will get some pics this weekend