Ok so to keep this short and to the point I have a standard 20g that I was to make into a basic reef setup. I'm living in a appt so space is limited and I can't have my 75 set up so the 29 will have to do until I move out. So where I'm going to put itmthenonly option I really have is a HOB. Is this worth it? I've always had sumps with skimmers and what not on my tanks so this is a little new to me. What's the best way to go about setting up this aquarium? PLEASE HELP IM GOING THROUGH WITHDRAWELS HERE!!!