Animals being cared for by humans must be kept and fed in a proper manner. Their feed must contain specific minerals and vitamins as well as tiny quantities of essential trace elements. This is the only way to strengthen the animals' general resistance and reduce the risk of disease. With DuplaRin we offer another unique feed concept under the Dupla brand name. Research into the feeding habits of tropical fish has shown that over 80 percent of their dietary constituents are identical. On the basis of this knowledge, we have developed a feed that ideally meets the needs of all fish. Depending on the size of the fish's mouth, we offer the feed in different sizes and tablet types.