I just got a new Yellow Eye Kole Tang from my LFS on Sunday and added him to my tank the same night. He's not in a tank with any other aggressive fish minus a pair of clowns but they're harmless and showed no signs of aggression toward him. The tang has been swimming around very fast and sudden, making a lot of aggressive turns, etc. Overall pretty erratic. He's also not eating. I fed frozen brine shrimp and even put Nori on a clip and he didn't bite. I've been thinking it's just because of the sudden environment change and it's just nerves but looking for other opinions.