Hey you should post some pics!!
Don't worry about it's eating. Sometimes, when you bring a moray home, it won't eat from two weeks to even three months. Other times it'll eat the same day you buy it. When I bought my "Freshwater", I think he went about two months. I just got impatient, so I bouht him a couple of feeders just to get him going. Now, I feed him shrimp from the store.
Do you know the whole freshwater/brachishwater/saltwater deal with freshwater morays? There are a few missunderstandings around the subject. Especialy when a store just wants to sell it.