thanks everyone - We just got a nice new couch in the basement so now I can stretch out down there and just chill and watch my fish, its kind of nice. As far as the electric bill, it didn't have much of an effect. If anything its more efficient now. I already had all the tanks running, I just put them all in one place, but now I'm using the baseboard heat to heat the room behind the wall, so there's no heaters in any of the tanks.