My eel will eat any crab or shrimp, that's what they eat in the wild, snowflakes have rounded crushing teeth for that reason. Also make sure he has a tight fitting enclosure, I've seen mine come up about five inches out of the water nessie style just checking things out. They can't see well but have excelent sense of smell. Sometimes they will go a weeek or two without eating. And they like to stay hidden with only their heads out because their lateral line only goes back a little ways past their head.
75 and 36b reef tanks
180 new world cichlid tanks