Need help diagnosing these bumps. I ordered 6 tangs and received a yellow tang, gem tang and blue hippo tang on Tuesday and put them in a quarantine tank with copper and Furan 2 with some prazi pro, on Wednesday I received the other 3 tangs including 2 purple tangs and 1 powder blue tang. This morning I noticed the blue powder tang has raised bumps with white spots. I am suspecting ich but was also concerned maybe it is copper poisoning. The copper was at 1.3 yesterday and did a water change today and it increased to 2.01 Hanna checked. No other fish are showing any signs and all fish seem to be eating. Any thought would be appreciated,