It is very possible to have a succesful tank without a skimmer. It just takes more work and keeping on top of things more than some (I'm guilty) tend to do. I agree totally on not adding more than is necessary. I plan on my 180 reef which will consist of halides and pumps required for SPS, and then a 240 or preferably larger for a more aggresive setup. This tank will only be run on VHO and I may include some softies that will be alright with the species that will be chosen, that's the whole reason for the six footer to be the reef, less expense on lighting.