This might be a good time to take a break from keeping saltwater, Matt... until you have the time and commitment to properly maintain it. You'll be away what, a month? Maybe just part the 20gal out, and take a good long look at the hobby when you get back - take some time to learn what direction you want to go.
Your posts seem to jump all over the place, maybe you can take this chance to read, research and give yourself a break, before jumping back into it (hopefully with planning and foresight).
Just a thought... have a great summer, sounds like fun.
