hi all,i'm new to this site and a hopeful newbie to saltwater/reef keeping.i have the room for a 90 gallon tank.is this size too large for a first attempt at reef keeping?i looked at 75 but felt that the viewing area was too small.i'd also like to have a nice fish population and do not want to be restricted due to tank size.my thoughts were to start off with just live rock for a couple of months so that my wallet could recover from the cost of the tank and stand and also the cost of other equipment.any thoughts would be much appreciated.thanks,Bob.