Who Gives A Fish Forums

Looks like it's thriving.

Considering the species you've chosen, could a 500 gallon tank accommodate three species of anthias - Lyretail Anthias, Bartlett's Anthias, and Dispar Anthias - in groups of 13 each.

I recall Mike Paletta from American Reef sharing a similar experience. He discovered asterina starfish were irritating his LPS corals, causing issues. His solution was introducing harlequin shrimp, which resolved the problem.