Sick Purple Square Anthias

[Nemain]

I did add livestock, but after he was already not doing well. I have watched closely to anyone bothering him, and I can see no harasment. I have not added any new additives/filters etc. And my last water change prior to last night was on Wednesday.

I am truely baffled.

As I said I at first thought it may be a stress reaction, he seems to get his nose out of joint pretty easily, but never for this long.

I sit at work fretting that i am going to come home to a dead fish =(

Thank you,

Beth