I would say the Zebra, based on experience. A good friend of mine had a fuzzy, and he didnt seem to be all that active, more a recluse until feeding time, and they he acted like he had not eaten in years. The Zebra had that I had and have seen other friends have, seem to be more fore out going an interactive. Acted just a like a "venomous dog." But my foxface acts like that as well. Whenever I am in the tank cleaning, the foxface will rub his side against my arm and will come to the top for a bit of a seaweed sheet.