I've got limited space in my house for tanks and was considering setting one up in my garage. I was thinking of something in the 90 to 120 range for a single specimen cichlid tank. I live in central NJ and have a 2 car garage with what I believe are uninsulated garage doors. Is it possible to have a large tank with overflow, with some serious heaters in the overflow boxes, and be able to keep a tank like this around 78 degrees through a NJ winter? I would probably also construct something around 3 of the exposed sides for insulation. Any suggestions from someone who has done this would be appreciated.