I am getting either 2 pekin ducks OR 6 chics from TSC tomorrow and I plan on using an old bathtub, (soon to-be-remoded bathroom) for my brooder. I think the bathtub complete with shower doors will be perfect, although I have a back up just in case. My question is how far away should the heat lamp be? I am using a red bulb. Should I just re-adjust until I reach the ideal temp? I am getting ready today so I will experment a little. Can the ducks eat the chick starter food? Thanks!