I measure out 2 cups total for all three (3x a day I fill 2 dishes). Lately, the portions I put out 1/3 cups at time is usually eaten with 30 mins or less. I just watch make sure everyone is eating if they happened to miss because they were sleeping they get feed later on. Eleanor is chow hound. Skinny and Thumper nibble. Looking at everyone they haven't missed any meals. LOL
They get food 6-7 a.m. 5-6 p.m. 11 p.m. before I go to bed.