Mel- used half dose of Mar. II (what I had at the time.) at half the packet dose (packet is for daily use at a 10 gal-- I have her in a 5.) Discontininued use after your and Ricky's advice, and after first water change (50 %) went with salt and Melafix (I like that product, too.) This morning, the cloudiness seems much less obvious than it did yesterday. I have done a 50%, same temp water change every day after removing solid waste. I am, this morning, encouraged by the progress. In the light, I can see that what I thought was darkening tissue is actually red tissue, which seems to indicate blood flow. (May have originally been brusing tissue?) Not worried about signs of infection and I am sure that the water quality is okay. At this point, I would be willing to drink it.
She is not tracking with the bad eye, but I am relatively sure that as long as no infection sets in, she will not lose it. I will keep you posted. Thanks so much for your interest.