I got the Yellow Longnosed Butterflyfish from Live Aquaria, and when he got to my tank, he started acting funny, swimming in only one section of the tank, next day he would swim to the other side and swim upside down by the side glass panel for about 10 min , then he would swim to other side and do the same thing. Then he would not eat anything I offer him, and now he has an eye bigger than his other eye.