Hi, I decided to get a stubby squid instead of a cuttle and have a few questions. How big of a tank will they need? Also, how deep of a sand bed should I have for one? Can more than one be in a tank? Are they as messy as octos? Should I get the tank sealed of with duct tape, or do they not try to escape? Should I put live rock in the tank, or just sand? Also, do they ship well? Thanks in advance.