There are some pretty big catfish in there. Really, catfish will eat ducklings? I never thunk of that.
I did get the heat lamp hooked up to the reostat today. Its over there heating up right now so I can see how warm it will get. I put a regular light socket and light in there as well. I covered the door solid on the end with the heat lamp and put hardware cloth (wire mesh) on the other end's door.