Currently, The cats have free food inside and out. However, with winter coming I want to discourage predators from coming to the yard looking for a free meal, and some of the cats are a little pudgy. My problem is that I have 9 cats all different ages and sizes. I have an 11 yr old male outdoor cat that is a little fat, but not huge. I've got 2, 6yrs olds (male and female), the male is big, but not fat, and the female is on the skinny side. They too are both outdoors. My inside/outside are the main problem. They eat in here, and then go out and eat. I have an 8yr old MC mix female who is fat (16 lbs). I also have 5, 1yr olds. The 3 females are getting a little pudgy, while the 2 males are on the smaller side. I don't know how to go about feeding them at a certain time, and making sure they all get the amount of food they need. Also, some of them show up at random times. If I feed at a certain time everyday, will they all come around knowing it is time to eat? The indoor/outdoor cats go through about 4 cups a day, so about 3/4 per cat if even. However, most of them then go outside and eat, and I know that my big girl eats more than that.