I absolutely love my Humu Humu. He always amazes me. He knows about when its bedtime. I turn his light off about 11pm each night and about a half hour before that he starts yawning. He immediately goes into his log when I turn his light off. In the morning, I turn his light on and he slowly comes out of his log and yawns and takes his good old time coming to the top to see me. He lets me pet him before I feed him and most days he seems to enjoy it. He will swim side ways on the top of the water fluttering his fins at me and will then playfully spit water at me. There are days here and there where he doesnt seem to want bothered, but I of course check his tank and usually his nitrates/nitrites need adjusted. He HATES my husband for some reason. Every time he comes near the humu humu sticks up his triggers and if he would dare stick his finger in the tank, he would be bitten. His name is puppy. His tank is near the couch and he watches us and comes as close as possible. He also gives me puppy eyes when he is lying in his log and I look at him. He and my dog try to bite each other, I think my dog is jealous that I play with puppy so much. I feed him shrimp out of my fingers, he never bites me. (the hand that feeds him) Except that one time! ha! ha! I guess he kinda sucked my finger and startled me and I accidentally flung him to the floor where he lie grunting. I put him back in the tank, he hid in his log then about 30 seconds later, he was fine! Thank goodness!!! I feed him a variety of foods, including live feeders. (which he LOVES) The only thing he wont eat is blood worms. He has an amazing amount of personality! I love him!!!