Well they are aggressive and once acclimated to you and the tank it should be out and about. But they are ambush predators and can also hide alot. Lots of plants and wood will make it feel more comfortable. It's sounds counter intuitive but more cover usually = out and about more. Every fish is an individual and you'll get a million responces. I have not owned one yet. I do plan on it and I've had tons of fish with the same overall habits.
My old reds weren’t personable. I wouldn’t dare put my fingers in the tank. Would and have done it with friends oscars and won’t go at my fingers. But if u don’t overfeed then it’ll be active up at the tank. Wouldn’t add any other fish with it.
Maybe a pim blochii that’s large and as long as the wolf is small then probably get away with it. Keep the bottom area a bit open for the catfish. I’d stick with a main pellet. Wouldn’t use beef heart. Earthworms are fine.
