I agree with Kurt and have decided to not add any more fish to the existing system. I think that the fish have ample room to grow though. Most of the fish that I have reach maximum sizes of three inches in legnth and none of them appear to be territorial fish that require great areas of tank space. The only two fish that I have that in my expierence have shown any territoriality or aggression are the Maroon Clownfish and that is only at feeding times when other fish come around his anemone and the Yellow Watchman Goby. There are some fish I want to remove from the system but just cannot catch - and the using a commercial trap has not worked well for me at all.
I recently watched a video though about a reef tank that contained many soft corals, some SPS
corals, and LPS
stuff. The tank was 100 gallons in size and had over 140 coral pieces in it, 58 fish including two mid-sized tangs, over 100 brittle starfish, I cant remember but between 500 or so hermit crabs and various other tank cleaning creatures. What is unique about this aquarium is it utilizes a deep sand bed, Aqua C Remora Skimmer, and small refugium as filtration and that is all. The clean up teams of brittle starfish and other creatures work on eating unwanted food and fish waste. According to the person who was administrating the tank claimed low nitrate readings and so on. Im not trying to advocate overstocking reef tanks since it is a dangerous game but there are some alternative methods of approach that have appeared to work well for some hobbyists. At any rate Ill try to find that video and post a link so others can watch it.
There are some tanks in Ultimate Marine Aquariums that defy stocking rules too. Anyhow I keep a check on all my variables and if I see a rise in anything or see fish that appear unhappy or are struggling with each other the above mentioned friend that owns a fish store will have some new arrivals.