i would say yes and you shouldn't have any problems. I have a 14" florida spotted gar for over a year now and he lives with a FW eel, Jack Dempsey, Tinfoil barb, a Bichir, 2 Plecos and a baby turtle. The gar has not attacked, nudged or nipped at any of them. The only worry i have is any fish that you have nipping at the gars fins. Gar tend to sit motionless for hours and can be picked on. I had a bad experience with a cichlid that ate his pectoral fins off so i had to get rid of the cichlid. The gar is now healthy and made a full recovery. Long story short i think you should be fine. They are great fish to have and is a great addition to a tank. Plus they are awesome to watch feed and chase down feeders.