African Cichlid Disease

Hi, I'm new to this site and need some thoughts as to what my fish has and how to help him. From what I have read so far it seems it could be lymphocystis which is viral and apparently no real cure. He is by himself and none of my other 20+ fish have been affected and remain I'm good health. I just wish Big Kahuna was feeling and looking better :/

I've also read that lymph is not curable, although good clean water and low stress can help the lesions go away temporarily.

Good luck.