Well I went away for a while and am back the original 30 gallon tank is actually doing quite well a shame I will have to tear it all down... hopefully I will be able to save the denizens and transfer them to the new tank. I started out on a very ambitious project to create a nearly self sustained homeostatic Caribbean biotope... and the world (especially experienced fish keepers laughed) So I went away I kept reading kept researching kept experimenting with the original tank (using scientific method with all results recorded) and I am still not dissuaded, in fact in my research and carefully sought out contacts I have seen many things that lead me to believe that with enough thought what I want is in fact very possible. I have encountered many aquarist that have stabilized one component or another of the system. I simply hope to combine the procedures of many people smarter than myself.
With all of that being said, I am re-opening this thread, I am doing so because, well it's time, for one thing I am much better prepared to be laughed at, I am much more well read, for instance I know Clown fish are not indigenous to the Caribbean, a tiny bit more experienced, and there were a few people here that did truly help me when I was very confused in the beginning.
So for the benefit of everyone reading lets just skip to whether or not what I want is impossible and build to get as close as possible. To begin with one of the great problems was water volume. Nothing even approaching self sustaining could be done in 30 gallons at least not with a fish (still don't have one, though I have several healthy inverts). To solve this I have built a custom cabinet that is 56" long 20" wide and 40" tall (this is the size of one wall I had). Then I ordered a custom tank that is 56x20x36 to set on top of it..... that will be 175 gallons then I will use the 30 gallon as a sump and a 10 gallon (kind of sad about that may eventually go bigger) for a refugium.
Work calls will finish later...