Daphnia are tiny freshwater crustaceans of the order Cladocera. Dried Daphnia is an easily applicable food which is the source of numerous macronutrients and trace elements as well as chitine – roughage substance, which regulates digestive processes. The addition of vitamins, including vitamin D₃, ensures excellent condition. As Daphnia are relatively small crustaceans, they are recommended especially for young animals.