I currently keep 4 Pink Square Anthias (Pseudanthias pleurotaenia). Captive bred, Biota. Purchased them all at the same time back in July 2022.
I feed dry / pellet mix hourly starting at 0830 to 1830. Small portions. Between 1830 and 2030 I feed one frozen session. Rotate through LRS Reef, Fish, mysis, prime, and brine. This is a medium size portion. Dry is a blend of TDO x-small (I have gobies), small, Hikari A & S, and PE Mysis.
They arrive all as female. One is clearly the dominate and starting to transition. It is slow going but you can see the color difference in body and fins. It does an odd dance, head butt, and a bit of chasing or corralling. There are no fight clubs, locking of jaws, or torn fins. Just one sort of herding. One is clearly smaller than the rest so lowest in the harem pecking order.
They will group up for a bit and shoal then go about their own. Pair up here and there but that is about it. They are pretty docile all in all but do chase other fish. I have 11 lyretail damsels that they will dive bomb. I introduced a Milletseed Butterfly (Biota) last year and they pretty much chased it non stop. Now it is larger and holding its own. I guess my point here is that they do dive bomb and chase fish but not a relentless chasing to death.
Upon arrival they are small and pale in color. Maybe 8 months old to a year. I didn't ask Biota but that is my guess due to their size. No more than a year and a half. So while you pay a premium for captive bred/raised animals you get them young, eating, healthy, and get to watch them grow. Coming up to two years with them now and it has been a blast watching them. Their colors are amazing. They have the potential to get large so keep that in mind. 7 - 8" easy. Looking at mine now they are pushing 5" easy.
I've attempted 5 Lyretails (Sea Goldies) Pseudanthias squamipinnis with little to no luck. Eating and fighting. Won't go down that route again although the male is probably one of the prettiest fish there is (opinion of course). I've had some success with Bartlett's (Pseudanthias bartlettorum) but they slowly wittled down to a single.
Here are my current 4. Must love Biota