How about the ocean, of course that is just my opinion. Everything I have read on these says their surviaval rate is very poor in the home aquarium. Not only are our aquariums too small, but they are hard to get to accept food. Check out Energy's stingray tank thread on here. His tank is 1700gals and IMO is very extensive and a cut above most people's tanks. These creatures along with sharks should be left in the ocean.