So I'm planning on starting a saltwater tank if I can arrange my room to have the space for a fairly large tank for the saltwater. I know of a shelving unit I can get that should support the weight of the entire setup. Can anyone offer any tips for saltwater tank keeping tips? Can I use treated tap water, which I do with my freshwater fish no problem? (Obviously I add salt, which I get from my LFS.) PS; I plan on starting with two or so clownfish once the tank gets cycled.