I just saw my cleaner shrimp tending to my sailfin tang. Upon closer inspection I saw a few small white spots on it's body and fins. Very, very small. From my time in FW it looks like Ich. My question is on treatment. I've got a 30g that I could setup as a hospital tank but I would never be able to catch the fish. How should I attempt treatment? Is there a treatment that will not affect any of my corals? I've seen products advertised as reef safe, but are they? I've read a little bit about Hyposalinity but once again, catching the fish is the tough part. The fish wasn't infected this afternoon, it just popped up within the past few hours. The fish is still actively grazing and feeding. It's breathing doesn't appear to be labored and it's behavior hasn't changed a bit. At this ealy stage would it be worth while to try garlic? Correct me if I'm wrong, but the entire tank needs to be treated right? Since the flagellate stage would still be present in the water column after visible signs on the fish were gone. So in that case I would have to remove all fish from the display tank to fully eradicate the infestation?