Keeping an eel in a reef

[Jaws]

So I've been in the hobby for over four years now and, with exception to some recent pest problems I've been made aware of, have successfully kept sps the entire time and understand the husbandry involved in keeping a system like that. I'm building a 90G corner bowfront sps/lps/softie tank right now and have been designing it around keeping an eel of some sort. I've made it so the hood is completely enclosed with exception to the external overflows which I've already found a fix for as well. I've also built a network of 1.5" PVC tubing to be hidden amongst the live rock for a den of some kind. The ultimate would be to keep a blue ribbon eel but I understand the survival rate and care level of these creatures and would only accept one if I saw it eating in the store. My question is are there any people out there keeping eels in their reef right now and if so, what eel are you keeping and what experience and tips can you offer? Thanks in advance.