I don't think that is a female lyretail. Looks more like a Pseudanthias hypselosoma to me. In either case, frequent feedings are recommended, but as I have found out over the last 2-3 years...not necessary. I have several species of Anthias in my tanks, and as busy as I am with work, they all get fed once a day...twice a day on the weekends. None have shown any ill effects.