While my cockatiel Violet took to eating her pellets right off the bat, she has been much more stubborn about eating ANYTHING else besides millet and seeds. I limit her pellets, since the info out there seems to point to tiels not doing so well on a high-pellet diet. And cockatiels need more seed in their diet than the big birds, but also can/should eat veggies, cooked beans, grains, bird bread, even a bit of fruit. Violet won't have anything to do with this *yucky* stuff! I continue to feed her a warm mash/cooked grain type meal every day with the big birds, but wanted to have a super healthy seed type mix to feed in the meantime. But I was really aiming for more of a whole foods, high nutrition mix, than just a bunch of seeds.
I started with a base of Higgins Sunburst Cockatiel, but I picked out the big chunks of dried fruit and nuts first and put those aside for the bigger birds.
http://www.higginspremium.com/SunburstIntro.htm
To that I added a bit of Goldenfeast Petite Hookbill blend, and Goldenfeast Gardenflora, and Gardenflora II.
http://www.goldenfeastfoods.com/online/products-page/small-birds/cockatiel/petite-hookbill-legume-blend/
http://www.goldenfeastfoods.com/online/products-page/small-birds/cockatiel/gardenflora-blend/
http://www.goldenfeastfoods.com/online/products-page/small-birds/cockatiel/gardenflora-blend-ii/
Then I mixed in some of the smaller bits from Phoenix Foraging's Unpellet Mix- full of herbs, spices, etc.
http://phoenixforagingrolls.com/UnPellet-Mix-011.htm
Next went in Just Tomatoes brand dried peppers, tomatoes, carrots, peas.
http://www.justtomatoes.com/jtstore/pc/Just-Veggies-3p157.htm
After that, I went on an "everything but the kitchen sink" spree to see what I had in my cupboard. I added:
Bob's Red Mill 5 grain cereal mix
steel cut oats
quinoa
barley
kamut
fennel seed
crushed red pepper
bee pollen
flax seed
chia seed
mustard seed
Whew! This mix is SO pretty, and smells great. Violet is really liking it, too. She doesn't eat everything in it yet, but will spend whole minutes at a stretch grubbing through it, obviously enjoying herself! I usually feed it out of foraging toys, as opposed to a bowl, as well.