Ok so I got this tomini tang 3 weeks ago and I've noticed my fish have been itching and having white spots. So I have a tomini tang, 2 percula clowns, tailspot blenny, golden headed sleeper goby and a melanarus wrasse. The tang has a few white spots on his fins and the wrasse is itching. A week ago the sandsifter had tons of white spots so I started dosing with Ich X for about two weeks and he looks so much better. Now? The tang is showing the signs he did and so I strarted dosing again with ich x but I noticed my corals were being stressed. So I moved them to my friends tank were he is holding them till I get this under control. I'd there a more effective way to get ich off my fish then to use ich x? This is in my display tank and I'm not using copper for shure:/ or should I just keep dosing for a while?