You are asking good questions, Salty Dog;-) You will find alot of good information online. Here at RC (Reef Central) in the forums you will find at the top, Sticky's, which when clicked on provides further information. For example with this forum, you will find information about setting up a SW tank and several other topics. There are online magazines such as Reefkeeping which provide even more information. To be successful in this hobby, read as much as you can and of course, ask questions when you don't know something. The more time you spend on RC, the more you will learn and learn from those who have years of hands-on experience. Some information you get will not be accurate, some will be right on. Everyone's tank is different so you will have to apply the information/suggestions to your particular tank/situation. Welcome and Happy Reefing!!