Okay so I was at a LFS in New Jersey, and I see a young 5-7'' florida gar in a tank for 40 bucks. I would really like to get this fish because he was incredibly pretty and pretty cool looking too. Plus he was in a 30 gal. If i wanted to keep him in the same tank his whole life, probably without upgrading his tank, what size would be minimum for just that guy alone? Thanks guys!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!