With that said, no one is really providing the most suitable environment for our fin friends. And if everyone looked at it that way, then all the fish should stay in the ocean, really, because there is nothing that can compare.
This is usually an argument put forth by those looking to do something inadvisable. The true answer is quite the contrary, many people, including folks on this and other fish forums have had (or are still having) success keeping fish species for their full lifespans. This indicates that the necessary housing, diet, and social needs are properly met. To go even further, when given the appropriate environment, many of our fish/corals in conscientious systems actually get to live their full lives where they easily could have been prey in the wild. The open ocean is not a kind place where all animals grow old and fat in peace and harmony.
However, I am very optimistic, and with my past experience with the yellows, including 10yrs of breeding cichlids, and the preparation I've provided, I truely believe the results will be positive. I am not one to not try or experience because it's unpresidented. I believe people who think outside of the box could potentially contribute a whole lot more to society than ones that go by the books. Regardless of their failure or success, they are teaching the world something, rather than nothing.
If you think it is "unprecedented", take five minutes and go to
www.wetwebmedia.com and browse a few of the email questions in the surgeonfish links with people trying to stuff them into a system. For years, this has amounted to "been there, done that.....failure". You are really only pleading a case of ignorance as there is no other way to describe it.
For those that don't think success is achieved in two years, what is success than. Getting them to spawn and raise the fries to adulthood? Get real!
What is success? Success would be providing the ideal environment where a fish can reach maturity. You seem to put a lot of weight on the fact you were able to keep several yellow tangs for 2 years but this really doesn't prove anything. Juvenile fish often will not fight with their own species because they have not yet matured to where they claim a territory. Once you are dealing with sexual maturity you are in for a lot of trouble with both aggression and the immense amount of bioload from having fish in your tank that may reach 10". Although, I have the likely impression that you will sell off this lot of fish too after a short time...claiming "success" because none had perished short term.
In regards to prior questions from Steve, you have not yet detailed how you determined "success" with your yellows after two years.
From the viewpoint of anybody doing any actual experimentation, studies, etc. to further the hobby, the presentation of this as such is absolutely silly. I would have more respect (although still little for the deliberate ignorance of hobby information) if it was simple stated that "I want to see first hand what happens when you...." as opposed to hiding it under the guise of research.