Eric Borneman has done a lot of research on them. YOu may wish to google him and elegance coral. If I recall, they are actually thought to not do well in our "pristine" intensely lit tanks. But there also appears to be a disease that could be an issue as well. It has been some time since I read about them so I may not recall correctly.
All in all, many experts have tried, and in recent years, have not faired well as a general rule with some forms.