I'm running only an 80 gal DT in my living room with an 80 gal sump in my basement that's pretty much got an area 15X15 that's dedicated for my fish room. It's pretty messy right now as I just finished QT'ing a couple new fish and haven't had a chance to clean up after introducing them to the DT. I also have another 20 gal tank down there for a yellow watchman goby that seems to get picked on. Although the wife (who's been less than receptive about my tank so far) says the other day, "I feel bad for him, we should get another tank upstairs so he can be with everybody."
