Know what this is? I have little experience with illnesses other than a little ich way back when and this doesn't look like ich to me. I didn't see any dead ringers in the stickies. He's had this for awhile ( a couple weeks ) and is the only fish showing any symptoms. I guess I was hoping it would heal up on its own. He's a 7" borleyi in a 125g with about 15 other peacocks. I do a 20% wc every 10 days or so and the water parameters are all good, stable for the most part since the tank was set up about 2 yrs ago. The tank has 3x emperor 400s, an xp2 for filtration a 350gph powerhead for added circulation. Temp is rocksteady at 80f. Any advice on diagnosis and/or treatment? Help would be greatly appreciated, I've raised them all from fry and would hate to lose even one. Thanks.

