I bought 2 peacock eels a couple of days ago, ive had a fire eel before so i didnt think twice, however 24 hours after i got them, one of my eels went missing. i know the like to hide an escape and what not, but i havent found him outside my tank (trust me i looked...) and ive searched up and down my tank. anybody have any advice on trying to find this sucker? the other one is doing great, a typical hider, but at least i can see im. (the other one is lighter, almost albino, thats how i can tell the difference...) Plz help!

, I should be moving sometime this month
, so I'll be getting some sand for them if thats the case. I'm really hoping i dont have to stress em with a change to sand, then move them across town right after...