tang

I have had my tank for about 9 or so months. Recently added a yellow mimic tang. Today i just noticed this. Is this ich? What do I do?! This is my first time dealing with this. None of my other fish have those spots. I went to a local pet store and a marine employee said he has seen tangs have...

I am geting a nuvo 30 tank and was planning to get two clown fish and was wondering if it would be ok to have a yellow tang in it. I have seen it in many nano tanks but still want to make sure?   Also is the red spotted blenny an good fish for the tank? THANKS!!