I have been keeping saltwater tanks for almost a year now and not one of my fish has had a disease ever! So, I think my yellow clown goby may have ich but the thing is that niether of my 2 clown fish or my 2 spot blenny has ich. the white spots of the clown goby look to be too big for ich to me AND I saw 2 of the white spots come right off of him in the water flow. Does ich come off like that? He calls the colt coral home, so he is always in it all the time. Does this seem like ich to you or something else? If it is ich, how do I treat him without killing all of my corals? I don't have a quarentine tank!