If people were all the same, the world would be a boring place. I have many hobbies and love my fish. They are my pets, pets know there owners whether they are fish, dogs lizards etc.
My girlfriends gecko comes out of his hide the moment he hears her voice. Fish are the same. They see the little blue tub in my hand and they are swirling round the tank. They are now completely unfazed by my messing about in and around the tank. They brush past my hand. There are lots more to fish than meets the eye. I greet them but don't generally talk to them. We communicate using the power of the mind!