Most eels in general can be rather difficult to start tank feeding, the main thing here you really need to do or have is a well sealed tank, excellent water quality, maintain the proper Ph with low levels of nitrates to no traces at all. Also allow a many hiding spots that you could possibly manage. For the most part in all my years of keeping eels is that most feed some time during the first few days.
But I never would feed live, when you say live, you really meant live feeders and nothing else. If that be your solution, your a bigger problem then you think. Its like feeding silversides, OK, use silversides to try and get your eel to feed if that be your goal. Myself, I never as well even feed my eels silversides, silversides will do nothing at most for your eels ,long term dieting plan its be like when you sit down to watch a football game and your snacking and chips and having a beer, Junk, but the beer be nice junk, LOL
These days at most, I have me two glasses of wine a day.
It was like when some hobbyist was telling everyone in his thread how well his gotten his Ribbon eel to feed, and he down loaded a video showing he was feeding the eel feeders. He properly doesn't even have the eel any more, some success.