Orchid plant food advice for an orchid growing newbie?

[All Bama's Chumps]

In the spirit of full disclosure, I admit I am an orchid newb as far as actually growing orchids. But I've done my research/reading the past couple of days on basic orchid care before I bought them. In my orchid education, I've read a few different things on plant food for them. Two things have stayed consistent with all websites I've visited on the subject of orchid food: 1) use a balanced fertilizer (some say 10-10-10; others 12-12-12) and 2) use a quarter of what the label instructions say. When I was shopping today for liquid plant food and other orchid supplies, I couldn't find any that were balanced; it was mostly 12-4-8. Which got me thinking: I wonder if I could use worm castings? Ya know, a light dusting of castings every week or so right before watering. I know that in their natural environment they would get no such thing, but it's all natural, full of nitrogen, and who knows? Maybe they do get something similar to worm castings as far as its chemical composition out in the wild. I'm curious to see if anyone's tried it and how it worked for them.
Randy, check your link: Question deleted. Epic fail.