You acted like I was insane for buying a fish that will outgrow my aquariums. Happens all the time at every LFS. ID Sharks, Red Tail Catfish, Tiger Shovelnose, Arowanas, South American Cichlids end up in inappropriate aquariums all the time. People also eat fish, and this Gar will likely eat many as well.
However, I should have mentioned the ultimate home of this Gar, to keep the trolls off. He's going into a 1 acre farm pond. The pond will not be heated, as I've had no problems keeping Alligator Gar over the winter here before (Alligator are said by some records to have historically resided here, though it was likely an expansion of our limited Longnose Gar population). That, and it is extremely cost to heat that much water. The previous problem I had with this setup was a sever summer drought here one summer that dried the Gar pond up. I have since periodically increased the depth of that pond and cleaned up all the tree and brush growth.
Besides the drought, the setup worked satisfactory with Black Crappie (the Gar actually kept their numbers from overpopulating in the small pond), Bluegills, Fathead Minnows, Bullfrogs, Crayfish and stocked Goldfish providing a bulk of their diet.
However, I no longer reasonably think a 1 acre pond will sufficient for breeding, and it takes Gator Gars too long to reach a breeding size from fingerlings. That and my interest in aquaculture has largely been diminished, and breeding Alligator Gar was more of a naive ambition of my youth.
(OR) I may just later sell him to someone with a bigger tank. Nothing wrong with that either. I'm also trying to talk the wife into a 300 gallon plus tank, but she's already annoyed with all the aquariums in here. Haha.