A Fish Test to Make Food Safer (IMAGE) Fraunhofer-Gesellschaft Caption Researchers inspect the two-cubic-meter water tanks equipped with a powerful filter system. Credit Fraunhofer IME Usage Restrictions Appropriate caption and credit required 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.