starting a nano, what do I need to know?

[Skimmer Juice]

I had a horse shoe crab for about a year. He stayed burried almost 24/7. My cowfish thought it would be a good idea to sample his eyes for lunch. Before I could get to the crab it was to late. My point is in that year he got huge, you will have to move him to a way bigger tank fairly quick. So unless you have a plan for a 120g tank in the next year, do the crab a favor and dont buy him.