I have a very sick goldfish, she is 15 years old, for the past couple of weeks she ha
I have a very sick goldfish, she is 15 years old, for the past couple of weeks she has been laying on the bottom of the tank not coming up for food, she has a film over one of her eyes and I noticed that same eye is protruding a little, not as active as she once was, then today I went to check on her and she was swimming sideways and then she started doing spasm like flips and swimming upside down then she lays at the bottom again. Please let me if there is anything I can do for her, cause I don't want her to suffer. She is old I know but she is the only fish I have, she is in a 10 gallon tank.