Tetra natura is a completely new way to feed tropical fish offering a great tasting more nature like dietr using tetrarsquos exclusive gel technology natural foods are combined with additional nutrients to provide a balanced healthy diet that your fish will lover so now for the first time you can give your fish a closer to nature diet that also meets all of their nutritional needsr plus natura is easy and convenient to use and storer pack contains 3 x 24hr feeding blocks for grazers