I have a fire eel - about 12-14" long, nice and plump even though he only eats twice a week but it drives me crazy. He lives under a large piece of wood, coming out at night only - in fact I very rarely get to see him. He has this habit of laying under the wood on his side with his mouth wide open, like an old man snoozing. Every time I see him do this I panic and think he's dead, so I move the wood and he immediately burrows himself in the sand leaving just his twitching nostrils out. Does anyone else have one with strange habits?