Now that I think about it, they keep Whale Sharks, mantas rays, Giant Groupers, sea turtles, & trevallies all in the same tank at the Georgia Aquarium, so these species should be fine together. I figure if I remove the dolphins, dugongs, & birds, this mixed-species exhibit would definitely work with an adequate amount of space. Plus, now that the predatory animals are gone (dolphins & birds), I can add smaller fish (tangs, surgeonfish, eels, squirrelfish, porkfish, etc.) to make the tank look less empty. Maybe I could even throw in some stingrays or small sharks in there too.