Two weeks later, and the situation is identical. No physical blemishes and fin rot is not getting worse, may be improving a bit. Eats fine, but remains pretty severely visually impaired though not 100% blind. Have to put food in front of face and sometimes still misses, can't eat from the water stream. I have in HT 40 gallon breeder with penguin biowheel filter and is getting hard to control nitrates, up to 10-20 ppm now despite extensive water changes (about 100% over course of week).
Is there anything more to be done in terms of treating it. I'm going to be traveling soon so I think I'll put it back in the main tank in a week or so and hope for the best.