I know, this is hardly a concern, generally, but my grandkids don't quite
understand why they won't come to the surface to eat like they've seen on
the tapes they saw. Is there a trick to teach them to come up?They've been in
my pond for maybe 2 weeks now.

Keep the grands still and quite, and they will come up to eat in a week or so.
They are just frightened now.....My grandson has been using my goldfish ponds
for a wading pond for years, he and the fish get along great, and when he
stands still they come up and nibble on his legs....but they gotta have you sit
or stand still for a few weeks first. Jerri

http://www.fringeweb.com/Ponds/JerrisPond