Well, I lost my first fish after tank was cycled. It was a smokey angel. Actually one of my favorites. I think the paradise I had terrorized her too much. I did end up taking him back for a less aggressive fish but I think she was too stressed out and I never saw her eat after that. I came out to check on her this morning and she was floating around and swimming half sideways. I checked the levels and everything was fine so I have to assume it was something else. Also lost a ADF from another tank but I just brought him home.
Sorry to hear of your loss.