So I got my juvi achillies about a week ago. He seems to be doing ok but he is so shy! He spends most of his time behind a rock and at one end of the tank. This is my first one and thought they were aggressive and really active, he was the last fish I added in my 280 reef. The only fish that pays him any attention is the purple tang but nothing more than a raised fin. I'm just concerned he isn't getting enough to eat. He goes right to the food but spits out more than he ever eats. Is this him just getting acclimated? I feed a variety of frozen and nori daily. Have a very high flow in the tank and power heads breaking the water surface creating more oxygen. Any ideas?