I have a 100 gal tank with assorted african cichlids, an angelicus cat, a spotted raphael cat, and a small plecostumus. One of my aceis appears to have ich on it, and I think some of the other fish look like they may have it, too. I want to treat the tank to get rid of the ich, but am not sure what to use since I have a pleco and I know they are sensitive to certain meds. Are they sensitive to Quick cure? What should I use?