Calle,
That's not the one I had of course, mine was larger before I finally lost him, but actually that's exactly the way I fed mine. Other than I fed mine by hand.
But basically eels don't eat every day. They can go days between feedings, so I figured I wanted mine to eat fresh, not something frozen or freeze dried from a can or jar, so I went to the local Kroger's at the time and bought a few fresh shrimp once a week ( when he was little I got small shrimp and later he ate jumbo tiger shrimp ) and Harvey was happy.