The only pieces i have that I know are wild are still going strong. I have three all are over 5 years old and the oldest is maybe 8 or so. Several others, I have are maybe wild. I had to agree with my LCS owner this week when he told me that he noticed no difference at all in the suvival rate if they came in healthy to begin with. If the coral comes in severely stressed then.... all bets are off. He also told me that he likes wild better as in his experience, they are less likely to hold pests than maricultured.