I've been doing some research and I'm wondering what suggestions people have of tankmates for my severum. He's about two inches long right now and I feel like he's getting a bit lonely with only a few tetras and a maccus pleco in his 29. I'm interested in a fish (or few) that will encourage him to be more outgoing and relaxed, as he's been pretty shy overall. He will be going into at least a 55 once he's fully grown, but I'd prefer to arrange the stocklist to keep him as the main focus of the tank.