Now that you have the biocube, there are tons of build threads of other peoples tanks on them. Just google biocube 29 and you will find tons of info. Be forewarned though, those tanks are one of the most modified out there. Including mine
It can get overwhelming, so take it slow and youll be fine. There are a couple of things that are widely agreed upon to make these tanks awesome tanks. If you want to have the best filtration, I suggest doing a couple of simple modifications. First the stock filter gets clogged fast, and the bio balls will lead to problems if not regularly maintained. I suggest yanking both. There is a company that makes a media rack(a three level stand that almost all biocube owners put filter on the top tier, purigen on the 2nd, and chemi-pure elite on the bottom tier). Adding that will also free up room if you want to add a skimmer or a refugium (or both) and makes maintenance a breeze and the filtration is top notch. It easily fits where the bio balls are and the companys customer support is top notch and can answer any questions and take the confusion out of everything. Also, feel free to ask any questions you may have, you can even pm me if you need to. This was my first saltwater tank also, so I know how it is. You can absolutely have a great tank just the way it is if you don't want to modify it. Although, the stock filter will clog a lot and cost u an arm and a leg. There is a simple solution to that also. If you would like to look into the company I am referring to, just pm me and I can give you their name. I think he is even on this forum also. And you can call him and he'll be glad to help. No question is stupid, and some people may tell you to search for the question you are asking, but I say just ask it or pm me and I'd be glad to help. Hope you're ready to spend a lot of time with your tank, because it's addicting. Enjoy.