My 15 year old blood parrot, Mrs. Fish, seems to have developed swim bladder problems. I can't tell if she's constipated (she will NOT entertain the idea of peas-I'm pretty sure she flipped me the bird when I put them in there!) or has a tumor or has a blocked ovaduct. She was laying eggs very regularly until the last six months. She spent the last week and a half face down in a plant, then seemed to develop some form of head rot. I have treated her with a broad range product, then after some partial water changes I added some aquarium salt and some antibiotics because I'm suspicious of coulmnaria bacteria. She is alone in a 38 gallon tank (except for the one black neon tetra that she didn't eat), so she is not stressed from other fish. She still interacts with us, but now never comes off the bottom. I know she's at the outside edge of her life range, but I hate to see her looking so sick and miserable. Any suggestions would be appreciated.