thank you for the reply. please keep posting as time goes by. I am very curious. I day dream about having a pond for a few ducks and geese and then a separate tank (where the birds can't get to) for some feeder fish and a tank of water plants as food for the birds. and then also doing the duckponics with all the water and i suppose aquaponics with the fish water. I saw a youtube video of someone doing this except she did not have any fish but she did grow plants for her birds to eat. i found the video
it will be at least a few years before I get any ducks or geese which makes reading about it here extra fun while i day dream about my future ducks and geese.