Hello fellow reefers, I am in need of your expertise. I used chemi clean about a week ago he had some redness on his skin(didn't take picture). I have done two water changes since, one a 30% and another 20% three days after. Is this possibly just stress related because of everything. He still eats and swims around or does it look more like fin rot or something worst. I have a strawberry pseudochromis who is a little aggressive and the tang likes to keep it in line so maybe they got in a little scrap as well. All water parameters seem to be normal.