Roudybush also has a little variety now in that they recently came out with California blend having more fruit and veggies like dried peaches, apricots, plums, bell peppers, carrots, tomatoe and cabbage combined with Roudybush Daily Maintenance pellets. Roudybush daily maintenance has has roughly 7% fat and 21% of its calories are derived from fat. Which theoretically helps in converting birds from a diet high in seed fat
Either bird food which falls under the category of "engineered" bird food which will theoretically sustain any caged bird for a lifetime without the need of additional vitamins.
That said - there ain't no pellet trees in the rainforest so you still want to give you bird fresh fruits, veggies and nuts.