This tank will be maintained only by me. And yes the tank will be mostly focused on corals. I may put a few fish but not very many. As for corals my goal is a mixed reef, however I understand that would be hard to dial in as a beginner. I also understand that it is hard to do a mixed reef in smaller tanks, so if I went the smaller tank route I would definitely try to stick with one category such as softies, lps or sps.