HI..i have a freshwater whitecheek moray eel that is about 13-14 inches long. i just got it a few weeks ago so i dont know what to feed it. the guy at the fish store told me to feed it feeder fish. but my eel wont seem to eat them. and the guy gave me some feeder ghost shrimp. my eel eats those..but only those..im confused..do eels eat fish WHOLE? or do they take bites and leave peices of them left? are shrimp a good diet for my eel? THANK YOU