Hi guys, I have a naso of above 10months since january. When i bought it, i didnt see the white spots on him until i placed it in my tank. From january til now, it had some white spots on him that looks like pimple and curve inwards. However, it was eating fine until today. When i tried feeding it, it didnt accept the pellets, brine shrimp and seaweed. I also noticed the fins is bitten. No idea who bit it. I had two other fishes in the tank, Vlaminggi and blue tang. I only have copper ( cupramine) with me. Could i treat it with that? I tried doing so last time but it didnt work.