I was looking at my clown and saw a single white dot on its side and thought this looked like ich, i havent added anything for over a month now and the last thing was an anemone. I have looked at all the other fish and can see no marks. Do you know what this is? Or if it is ich how to treat it as i have lots of inverts and corals in the tank and as this is my first tank i dont have a qt. By the way the clown does not appear to be behaving weirdly and was happily eating this morning.