I have lost 3 fish one female anthias one flame angle one emperor angle. I treated with fritz fixich and it helped get rid of the ich but the fish that died went into heavy breathing. Now my Hippo is breathing heavy and just stays in a resting spot and comes out every so often to scratch. He really isn't eating now will come out and peck a piece or two and prior to all this he was the king of eating. My wrasses one eye has a white film on it. I don't know what to do. Water quality is good it's a 75 gallon I just did a 30 gallon water change and added carbon. Water is good. I need help