I should have acted sooner on it I know, but 6 days ago I acquired a new 95 gallon tank with new fish: 6 Silver dollars, 2 Oscars, 1 Jack Dempsey, 3 tiger Loaches and a loach. Just one Silver Dollar had cloudy eyes from the start, they seem to be clearing (I haven't taken any action). Could someone tell me what it might be and what I should do (I don't think a photo would be very usefil as it's quite a light transluscence now).