I thought that last night she might been but decided it was a trick of the light. Today it is definitely not a trick of the light. She is still swimming around and eating, she just jumped to take a pellet from my finger. Should I add salt to the tank? I cannot get antibiotics here. She has recently had a string of stress related illnesses after I reduced the water change regime and a guppy had fry in her tank. The water changes will be increased to every day now. I know her survival chances are slim. Will salt and water changes help at this (early) stage?