I have a tiny 1.5in goldfish and I just noticed that his eye is completely gone. He had it yesterday before lights out, but today after work I noticed his right eye is totally gone! You can see the tiny dot of the nerve endings and all that, the hollowed hole where the eye was. It is active and doesn't seem to mind. But I'm wondering if I should look out for anything in particular that might happen. There is some salt in the water.