The pictures aren't very clear, but my cory cat has developed this red lump, and one of her eyes has started to bug out as well. I have searched online all over the place, but I cannot find anything that describes what this condition is. Is there any hope for my cory?
that's not popeye. it looks like a very large tumor (cancer). i don't think there is anything you can do besides choosing a method of euthanasia to stop your fish from suffering.