All kidding aside, back to the original post. I stand by my opinion that for a life tank, even if it only tops out at 14"-15", a male Jag needs a minimum 6' x 18" footprint to be comfortable. It's a very standard tank size of 125g or 135g depending on height and you can get them cheap. If you haven't got the tank yet, do yourself and your Jag a favor and go for one that's a little bit bigger. If you have the tank already, just get a female, they get to be a pretty good size too and are just as predatory IME.