I'm currently on vacation after about 1 1 1/2 years of starting my reef with 2 clowns in a 20 gal. I've been having my mother "house sit" and taking care of the tank. I've told her to feed flakes. So she called yesterday for an update as the female isn't eat alot (she a sweet sweet fish she keeps me safe from the other closing during wc). She decided to feed then then sneak into the corner of the room and she began to eat. She's never had this behavior when im home. In fact she's very dominant about food, and certainly not shy. So it got me thinking, how much do you guys think our fish or "pets" recognize their keeper?