My clown loves to look at his reflection. At first he kept trying to pick a fight, and would bite at the glass, and turn sideways and thrash his tail around. Now he does it mostly at night when the lights are off, he will go up to the top of the tank, and I presume look at his reflection in the surface of the water. But even that seems to be wearing thin on him and he does it less and less now than when he first entered the tank.
I kind of think it's like a puppy seeing his reflection in a mirror for the first time. He thinks its another puppy looking back at him, but eventually he learns either it's a reflection of hiself, or that other puppy in the mirror is no fun, he wont play back.
:jumping: