I have a fairly large dovii that hasnt been eating very well for a few months. A little background. He started in a 125 gallon tank and was eating and growing well. I later had to move him to another 125 gallon by himself. Ever since he was moved he eats a very small amount once every couple of days. He keeps a skinny stomach usually and where was once friendly is very fearful of any humans but kills any fish put into the tank. The water is the same as its always been around 7.5 ph and kept pretty warm. I dont feed it live food. I feed a variety of pellets and chopped fish. Im looking to give him some sort of medication if someone can recommend one to me. I havnt seen what his poop looks like in a while. I have included a picture.

