Cirrhilabrus scottorum, Scotts (Velvet, Fairy) Wrasse… Eating corals?
More common in outer reef areas than sheltered lagoon reefs. Usually seen in small groups feeding a short distance above the bottom on zooplankton. These groups are composed mainly of females and juveniles. Males in courtship, actively swim up to 3 m or more above the bottom with fins fully erect. from FishBase… and BobBase. The Lunar Wrasse, Thalassoma lunare “Feeds mainly on small benthic invertebrates and fish eggs” but I have known them to pick on some stony corals in captivity. There are definitely differences in the hardiness of species of Clownfishes… but much more important are contributing aspects of capture and handling… and the big one: whether the animals are wild-collected or tank bred/reared… the latter are by far the species and specimens with the highest index of survivability. Buy them.