I was really worried because I'm maxed out on my fish....so I always worry about fighting. So far it's been great. It's like he's always been here. Even my other wrasse isn't bothered by him. I think I just lucked out! :) Last night he didn't eat. This morning he was still sleeping when I feed them (he buries himself in the sand, lol). Tonight I'm going to try mysis shrimp. He ate ate brine at the store before I brought him home. He's nice and plump too--so I took that as a good sign.