Can you post a picture of the foxface? This will help you get the best diagnosis on this forum, and if you are in fact dealing with velvet instead of ich, for example, you would need to be more aggressive in treatment. Likewise, cloudy eyes may be bacterial in nature or due to flukes on close examination, which would alter the treatment plan. I will say that melafix is not an ideal solution (pardon the lame pun). If you are worried that the cloudy eyes are due to bacterial infection, I would treat with bona fide antibiotics.