Ivar is actually very chill fr what Ive read about jeweled morays! He is probably my calmest eel, only thing is he has to be fed first otherwise he will try to take food from the other three resulting in a big eel knot lol. But other than that he is very calm, just pokes his head out, and goes and hangs out with each of the eels all day. Rotates between them every few hours like he is the leader checking on them! He is awesome. He would love a snake eel I think! First time he saw Ghost in the the tank he went under the rock with her and smelled her, then curled around her until she was comfortable to poke her head out with him.