I have a few Lyretail Antheis. My male died a few days ago and now female is going thru the same symthoms. The female likes burying themself in the live rock and the body and fins get all scrape up. I do not see ich or notice any parasite. They are not eating and just hangs in the current. I feed them twice a day and water parameters are fine. My other fishes, 2 clowns, 6 line, Yellow Coris, 5 Chromis, Purple Firetail, and a watchman has no effect as the Lyretal. Can anyone help me diagnose this problem?