I have had this rock beauty angelfish for 4 years and for a month she has had popeye in one eye, she can still move the eye and she eats like a pig, all water parameters were checked yesterday and are spot on, I have tried a couple of doses of Epsom salts over a week but doesn’t seem to ease the swelling, my questions are how long will this popeye last, what else can I do, and will she end up losing the eye.