Ugh... well. When we went to the pet store, we were directed to some other treatment. Not sure if it's working or not. But I can say that the spot on the eye has not gotten any larger since I noticed it over a week ago.
Problem now is... we are going on vacation for about 3 days. So we're running into a little dilemma. We are doing a little water change and got feeders for when we are gone... but we can't really medicate him until we get back.
We are going to try the stuff that you recommended when we get back. Hopefully he'll still be OK. Other than the spot, he's seemed completely normal.
*sigh* I just wish we weren't convinced to go with something else.