I kept my kelberi in the kitchen away from the main traffic and they would really freak every time I went over there to do anything. My wife couldn't even go over there to look at them or even get the bread. Lol But I moved them into the tank in my front room and within 2 days they calmed right down. And within 2 weeks they would meet me in the corner for feeding time. There is more cover in my big tank, plants and rocks. So I think they felt more comfortable in there along with me being around the tank more often. It just takes time.