Hi Mary,
Yes, fish have nostrils and can smell foods. Just how well they can detect
the smell of flake food depends on how much of a smell the food gives off,
but most of it has an aroma that is obvious to us as soon as we open the
can. They can also detect the sounds and movements at the surface of other
fish feeding, through sensors in their lateral line. As you have him in with
other fish, you'd have to watch to make sure he gets his fair share, since
others have a distinct advantage of sight that he no longer has. If it
appears he is constantly being deprived of enough food, you may need to house him
in a tank of his own.
Ray</HTML>
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