That's an excellent point. I once raised one from that size to 8" in my 60 and then gave it to my uncle. In less than a month, it jumped out an opening in the back of his tank and wasn't found til it was too late.
My Girl friend and I are the proud owners of 2 new Arowana's now too. Well, more like she bought them and is taking care of them until I get home. But hey, I still get to look at the pictures...
