An earthworm is a tubular, segmented worm of the phylum Annelida. They occur worldwide and are commonly found in soil, eating live and dead organic matter. An earthworm’s digestive system runs the length of its body. It respirates through its skin. Earthworms are hermaphrodites: each carries male and female sex organs. As invertebrates, they lack a true skeleton, but maintain their structure with fluid-filled coelom chambers that function as a hydrostatic skeleton. Dendrobaena earthworms are the perfect food for your fish such as large Cichlids, Channa, Killifish, Barbs, Loaches, Bichir, Perch, etc. A culturing video guide can be seen here.