1 foot is just fine for the depth of a pond...
Brooding:
I usually brood in box style brooder with wire on top for around the first 3 weeks or so and then I will switch them to a wire floor brooder (I would prefer them not to be on wire but it's the cleanliness reason that I have them on wire at that age. They make a HUGE mess...). I like to move them into an outdoors pen around 6-7 weeks because it is usually just fine outside for them unless you have a late hatch and they don't make near as much of a mess in a larger pen. I use a gamebird starter for the first couple of days just to get them off to a little better start and then I switch over to waterfowl starter/grower for the rest of the time until they are mature enough to switch over to the waterfowl pellets. I mix grains in as well (scratch grains). If you are wanting to raise them yourself then the best tip I can give you is get ready to do lots of cleaning!
. I just sell eggs now due to the cleaning part... they take quite a bit more work to raise because they are messy but when they get to adulthood and in a large pen they really are cleaner than any of my chickens... they don't waste feed by knocking it out of feeders and they are much cleaner than larger species of waterfowl like Muscovies or Mallards.