I was going to set up a 265g tank with 1-2 silver aros, 1-2 f/s gars and i saw stingrays and i found these really cool, and i was wondering about like would these good tank mates for the gars and arowanas? And also what is the price range ive heard of a motoro ray and thought those were really cool, what is the price range and diet of those guys? What is the least expensive ray and why? What is the diet of rays? Lol sorry kinda new to rays