I have a friend with 2 of them in brisbane, he has them set up in a tank and keeps the tank stocked with feeder goldfish. The file snakes just pick them off as they please and are growing very fast... I have read everywhere that they are slow growers but I think this is just in the wild, as they are relativly slow snakes and probably dont eat frequently in the wild.
He has also told me about the lady in NT that bred his two, she keeps 5 adult (5ft) file snakes in a 6ft aquarium set up with logs and stones and they breed frequently. I belive they are a great display snake, and set up properly are very easy to keep. My mate says frequent water changes, and a few feeder goldfish is all they need. easy. I think his tank is set at 28 degrees.
Craig