Penny would only eat the coarse and so would Charlie but there was so much waste that I bought the fine......put it in their bowls and left them to it. They will eat it if they are hungry enough and I don't mean starve them, still give veg and fruit as normal but just leave the pellets in their bowl. You could try putting a little drop of juice on them or pretending to eat them yourself, but on the whole I say, that's it, eat it or leave it.........they eat it. lol.