You can put them in damp corn meal for a day. Then it gets dirt out. Or you can just squeeze it out right before you throw in the tank
He should take them fairly easily, in fact all my eels have loved all types of worms. Try a living one.Perfect Thanks everyone! As one asked the eel is 13", just got it two days ago. It already eats krill but want to vary its diet while its still in quarantine. I just tried a cut worm but no go, ill keep trying!