Fish can go a long time without food. Too many can lead to hunger. You
would see that. Goldfish will eat bugs and a lot of plants as well. If
you are feeding them regularly, don't give a second thought to skipping
days or even a few weeks. Ours have never blinked about a 10-21 day
absence on our part. The koi eat plants, algae and small fish. The
gambusia eat their babies and one another. Deaths would become food.
Our two (2!) gambusia are now the ancestors of thousands.

Don't sweat skipping food.

Jim

Sam wrote:
I just sold my aquarium and I'm enjoying not having to feed the fish
2-3 times a day.
But now I'm planning a small raised pond (100gal) and I'm thinking I
will need to have a few fish to eat mosquito larvae and provide
entertainment (a couple of goldfish would be nice to look at). On the
other hand, I don't want to go back to daily feeding.
Anyone have reccomendations, as to what fish would be good for the
above purposes (especially mosquitoes) but that would require minimal
feeding? Is there something I can add (e.g. plants) that will provide
food?
If it matters, our winters are mild in central Texas, but we do have
long summers.
Thanks,
Sam