I received a juvenile electric eel yesterday and I am having trouble getting him to eat when I tried to feed him for the first time today. The fish itself is pretty tiny, maybe 3.5 inches at best. So far I have tried cut up shrimp, and bloodworms. Neither of which it has showed any interest in. My water parameters are pretty spot on, so it's definitely not a water quality issue. What else can I try to get this little dude to eat?