I just heard that giving them another feeding place can help prevent them from being aggressive in the tank. I know a ton of BP owners do it?

And no, I don't have my lamp on a dimmer. I didn't even know you could. I'll have to get one today. I am confused though.. first you say put the lamp on the hot side, but then talk about using the dimmer on the cool side? And it is my assumption that the UTH goes on the warm side, correct?