Masta Man - So thats 2' long, 3' wide, and 2.5' high? Thats way to small for any Ray unfortunatly. They need atleast 250gallons roughly dimension wise. But, I can help you build a very cheap Ray pond which will look amazing, give you more than enough room for the rays, and not cost you alot.
Kevin34 - The smallest Ray, available in the aquaria trade is the Cortez Ray. I would not place any Ray with corals personally. A tank 250gallons, or roughly 6'x3'x2' would be sufficent for a Cortez.