There were at least three species of moray in this tank but I don't know what they are - this tank was one where the scientific name used on the sign was for a completely different fish than they intended. In this case the only species signed had a picture of the big greenish moray (on the right of the photo) but scientific name used was Muraenesox cinereus (actually the scientific name for the Daggertooth Pike Conger Eel).