Mediterranean moray eel (Muraena helena Linnaeus, 1758) is a marine fish belonging to the Muraenidae family. In this video we see it on a rather bare corralligious seabed at a depth of about 40-42 meters. As always when we dive to film the various marine species, even if we don’t want to, we are forced to document the conditions of our seabed and the health of our Mediterranean Sea …