Hmmmmm, wondering if I could modify the tank I have by taking off on of the sides, and then having it cut to fit the top of the tank essentially tilting the tank on it's side. this tank have really thick heavy glass though. I'd probably have to take it to some special place to get it cut. Of course then I would have a tank that's 48" long, by 30" wide and 18" deep for rays.
I know I have alot of time before I do this anyway. still gotta do some research, plus I gotta find a place to get stingrays anyway.