I just got a clown fish today and introduced it to my tank about an hour and a half ago. My boyfriend and I have been monitoring him and we're a bit worried because he's darting frantically towards food and eating constantly. Sometimes he calms down, but he doesn't stop looking for food. He also stays in the same spot towards the front of the tank. We've already tried feeding him, thinking that he was hungry. He ate the flakes eagerly but still insists on swimming against the current where food floats directly towards him. Is there something wrong with him???