Most of the people on this forum use "abundant feeding" which means the grey always has food available. I keep Timber's pellets and seed available all the time, and I give him fresh foods (chop, sweet potatoes, quinoa mix and other things he will eat) twice a day. Don't leave fresh stuff in for over four hours because of deterioration. He gets a quarter slice of peanut butter toast and a bit of egg for breakfast. I also have a veggie skewer I hang with fresh peas in the pod, broccoli, cauliflower, carrot and whatever. Does he eat all of it? Not hardly. He also wastes a lot. He does maintain his weight and gets some healthy stuff in though, which is my goal.