Yes water is clean I change every week. Yes did salt for a week. I don't wanna start adding meds till I know what it is.not seen this, water clean ? added salt?
i’m sure some of the other folks will chime in,
GL!
Do you use tap water? How long has this fish been in the tank? It could be ich, as ich can form spots, and sometimes bubbles (i think). It can also be Gas Bubble Disease. In person, are the bubbles clear? When did you do your last water change, and what is the temp?