I am getting close to finishing my new fish room. I basically framed and insulated ~100 sq feet of my garage. I was fortunate that when I set up my 250 gallon deep dimension tank that the back wall of the was adjacent to the garage. The room will start off with a 75gallon sump and 2 40 gallon breeders. I have a few other tanks that will get plumbed into the system a little further down the road.