Thanks wizard. I've seen a lot of FO tanks with no skimmer. Fish are more tolerable of fluctuations in water quality than most corals. Yes it can be done but if you own a skimmer, you should use it (I would).
Maintenance on this tank is a 10 gallon water change each week (including vacuuming the sand bed), replace filter floss, wipe down glass. Every once in a while I take off the HOB filter and completely clean it and run the PHs through vinegar/water solution. I do not dose anything and feed once a day.