Mazuri® Shark & Ray Gel Diet is an easy-to-prepare shark food made from fish meal. This Mazuri® shark diet is shipped as a powder that is designed to be made into a gel prior to feeding. In addition to all the vitamins and trace minerals you need in an aquatic feed, this Mazuri® aquatic gel is highly palatable, has a long shelf life and contains iodine agents to help keep your sharks and rays healthy.