After autopsy , the cause of Nico 's sudden death Saturday is inconclusive . The coroner said he could not determine a definitive cause for Nico's death. The Georgia Aquarium is undergoing renovations , which is why Nico was moved .
After autopsy , the cause of Nico 's sudden death Saturday is inconclusive . Nico died at Sea World in San Antonio , where he was kept temporarily . The Georgia Aquarium is undergoing renovations , which is why Nico was moved .