moray eel breeding

[moray eel man]

How do you sex a moray eel and does anyone know of them breeding in captivity

 

[spotfin]

As far as I know, there is no way to externally differentiate between the sexes. I've never heard of anyone breeding them in captivity. Perhaps it has happened (maybe in large, public aquariums) and no one has noticed or been able to raise the young.