couldnt have said it better myselfAs far as it being an Amphilophus citrinellus (Midas) there is no way to me to know for sure. I can say with a safe amount of certainty it is an Amphilophus sp. of some type. Wheather pure or not is impossibile to say from a picture. Where did you get it?
Petsmart, the only concern I have is that it has a red eye. I have never seen a Midas with a red eye.