This is Disco. My wife and I have fallen in love with him. He is getting these sores next to his gills. I assumed it was an injury at first and then thought flutes. I have used Med trio and it seems to heal it up but it just continues to come back. Poor guy has been on meds for a couple of weeks now on and off and Med trio isn’t working. Please help my wife and I would be devastated if I can’t figure out how to treat it. Thanks ph is 7.5, temp is 80, 0amonia, 0nitrite,
ps. I did follow up with the wormer.