Oh this sounds great!  I was just asking my boyfriend if he thought they would like minnows, I read that they will eat tadpoles so I thought minnows would be good too.  I can't wait to try it!  We just got ducks on Monday, a drake and two hen Blue Swedes.  I love them and what delicious eggs, they are great to watch and this sounds hilarious.  Thanks for the post RoseWarrior!