I don't suspect my Snook has any type of illness.He has been like this since I got him. He was eating silver sides before I bought him. He didn't eat for a long time when I bought him. He started eating silver sides for like a week and a pellet every now and then and now he won't eat at all. He just sticks the food in his mouth and spits it out. He also seems to be in love with our Zonatus. How can I get him to eat again? 