So confused..ich or not??? Help

[Coralgurl]

Well it's a sad day, my coral beauty didn't make it, found her dead this morning. She stopped eating yesterday, I watched her try to catch food but couldn't get to it. All the other fish are still showing great appetites and not any signs of problems yet even though they have I h on them as well. Today is the third day of treatment, hopefully it is making a difference.