Just a few years for me as well. I decided to add Bartletts one more time to my mixed reef. And, of the 6 or 7 I added six months ago, I have five left and all but one turned into super males. So, I would say never really was a harem.
On the other hand, I decided to try my luck with Ignitus, and I actually have a harem, 3 females and 1 male. However, I did start off with about 10 or so prior to quarantine, etc.