According to the experts you can't fight ich in your main. The chemicals that are effective aren't reef save and the chemicals that are reef safe aren't very effective. I was having a hard time getting a pic of my fish but a video was worth a thousand words. Typical ich will look like it is going away only to come back stronger a day or two later. Spots move frequently, fish doesn't look the same 12 hours later. Luckily my fish was still in QT
so I was able to treat him with hyposalinity. That worked great for him and he looks better and better every day. He's finally stopped twitching. He's always had a great appetite though (that didn't seem to suffer with the ich IME
Can you catch your fish and QT
them? That would be the best action. Then you could either do hypo or cupramine depending on which tools you have on hand/have access to and which treatments your specific fish tolerate best.
Good luck. It isn't any fun losing fish nor corals.
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