I really don't think a lot of people know a whole lot more about the Hawaii ban than "yellow Tang expensive"...the why's, the species affected, and many other things relating to the ban are beyond the extent of their thinking (not calling them dumb or anything, just that I doubt many people know a whole lot about it which is why pretty much the only thing you hear people discuss is the price hike of yellow tangs)There are hundreds of fish that used to be in this hobby that cannot be collected anywhere else due to them being Hawaiian endemic. I don’t really understand what you mean by the yellows being the only one.