"Mark B" wrote in message
...
If so, what kinds are best?

I give my pond goldfish (comets & shubunkins)
a slice of orange about once a week. Remove
rind a day or two later. Also whole wheat
bread a couple of times a week. All in addition
to usual pellets (soaked in pond water first) and
occasionally flakes.

So far so good. All seem healthy.

Gail