Hello all. I had recently bought a flame angel from lfs, and believe it came down with ich. I spent two nights ago trying to get the angel into a quarantine, and it did not help my tang is not a fan of the angel. The angel was dead the next morning, I believe most likely from stress. Now, I see my tang rubbing against the sand. Is this a sign of ich. I have copper with me right now, should I treat even if not sure. I can’t really see any visible ich spots right now. Any help is greatly needed, thank you.