According to our stickies, FL Gars would be fine in a 180 (6x2x2). If your tank is wider than that, there should be no question the gar will be fine for life. As mentioned above though, just make sure he's big enough to feel comfortable in there with the rest of your stock.
yeah definitely mate. thanks. hang on. ive got a list of what I want as stock. ill post t now.
"big ball of light, spits out dinosaurs" - Mac, Primeval New World
. Those are awesome dimensions with a great stock list.