I have never had a wolf fish, but I own a fakaha and they are a amazing fish. I would deffintiyl hands down recomend one, very personable and a real charictor. as far as requirments, like everyone said they like there shelfish, u need a roomy tank to accomodate them, and as far as water there compleatly fresh water, but do like a higher pH, but i dont think its nesicary.