I'm planning to get about 3 ducks (breed will depend on what is available around here at the time). I set aside an area in my backyard where I'm currently restoring an ancient shed, which is going to be turned into chicken and duck housing once it's done. In the soon-to-be fenced off area there is a lovely space where I'm seriously considering putting a small pond for the ducks. Who here have duck ponds and what do's and don'ts have you got for me? Also pics, if you have any, please! Things I'd like to know for starters is depth and size requirements, materials safe for use in and construction of the pond (I'm not going to go big or fancy with this).