Aquarium (IMAGE) Ruhr-University Bochum Caption The flashlight fish is one of the few marine animals that can be kept in an aquarium. Stefan Herlitze (left) and Jens Hellinger study its luminescence. Credit RUB, Marquard Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.