Part of the vipan family of products, sera vipagran floating granulate was developed with the natural feeding habits of your tropical fish in mind. Its soft, compact consistency can be nibbled or swallowed whole and it is readily accepted by even the most finicky fish. This staple diet food does not expand in the fish's stomach. sera vipagran contains a carefully processed blend of minerals, trace elements, and a multi-vitamin complex that includes long-term stabilized vitamin C.