About 3 months ago my dimidiochromis compressiceps got little white spots on her fins and i notice that my other fish were scratching themselfs against things in the tanks. Which to me looked like ick, my fish have had ick before and i use coppersafe and that worked great that was about a year ago. So the first medicine i used was coppersafe, which did nothing and since then i try at less 7 or 9 different medicines mostly ick meds and ever a fungus med with no lucky. Between meds i change 75% of the water and put new carbon in the filters taking it out for medicating. And not much as change in 3 months my dinidiochromis compressiceps still has white spots and my other fish are still scratching, my other fish dont have white spots. I cant thing of anything I could have done to cause this, all my water parameters are good. I just dont know what eles to do. And my fish show no signs of stress and their swimming and eating just fine. I would appreciate any advice.