I know this will be difficult to tell. I have had this anthias for 6 weeks in QT. Has been doing well with a Watanabe who I moved to the DT tank a week ago. I noticed that it hid a little more than usual. Seemed to be slightly less hungry for the past 2-3 days. Found her in the rocks this am. Water change last Thursday. Treated with Prazi about 2 weeks ago with the Watanabe.