From looking at pictures it seems the coloration varies from region to region as babies to adults and as far as what their worth its so hard to say because only one place even claims to be able to get them. Like I said before I am not even sure I am going to put it up for sale because I know nothing really about it and I would just assume to hold on to it till a true collector of rare eels shows some interest. Plus if it keeps those colors even at a fairly large size this will make an awesome display eel for my store.
Comatose would be your guy for finding out more about it; he's the biggest collector of rare eels on here that I know of.