When I go to sleep at night, my tank is right next to my bed, so Oshie swims over and sits himself on the plants to watch me pat my dog. I had to move around the wood I had in the tank recently, and tried to get him to move as well, but he didn't move when I tickled him, so I patted him more with my finger, and he liked it! He even moved backwards so I would pat his fin. I've had him for about a year now, and he's still growing. He's just gone into a four foot tank, and will be moved into a six foot in the next year!