The Lyretail Anthias does best when kept in a group and housed in a species-specific aquarium of at least 125 gallons in size. Male Lyretail Anthias are best kept alone or with several females. Though the Lyretail Anthias generally occupy the middle of the aquarium, it appreciates the availability of several hiding places.
Anthias species all share the trait of being hermaphroditic. If a dominant male perishes, the largest female of the group will often develop into a male to take his place.
Source: Live Aquaria - Photo used as indicative only.