I have a royal gramma and a yellow wrasse in my qt tank right now. They've been in there since last Sat, today I just saw 1 white spot on the yellow wrasse so I suspect that was ich. So what I did was feed them, they ate all the food I put in, removed the carbon and dose 1ml of cupramin. Now for some reason my wrasse is not as active as before, the royal gramma is doing fine. Anyone can tell me if yellow wrasses are sensitive to cooper?