I use a combination of alot of things, but I use pretty bird, harrisons and roundybush. I've also used scenic pellet. I want to try the TOPS and hagen.
Other foods I use which are very good are "Birdelicious" and "Goodstuff"
Here is a link to where you can get them
thebestbirdfood.com
parrotsontheporch.com
They are expensive, mostly the shipping, but worth it. The birdelicious is species specific which I love.
Also I'm getting ready to try a new food that you make yourself. It can be in place of pellets. It's called
"Mike's mash"
http://pets.groups.yahoo.com/group/mikes_manna_mash/You have to join the site, but I'm looking forward to trying it
tikileahsmom