This is what I use:
2 Cu. Ft. Flower and Vegetable Planting Mix
Add coarse perlite at a ratio of about 1:4.
For veg, ColorStar 19-13-6:
ColorStar 19-13-6http://www.harvestsupply.com/nelson_color_star.htm
A little bit goes a long way! Use 1/4 tsp every other watering and back off once leaves start turning deeper green. When new growth is looking lighter green than the rest, another 1/4 tsp can be used.
For bloom, NutriStar for Tropicals 5-30-5:
http://www.nelsonplantfood.com/Products/NutriStar5305PlumeriaFood.aspx
Feed according to the amounts printed but every 7 days instead of 14.
For each food type you need to crush it and dissolve in hot water and stir. Read pH and add the appropriate amount of Garden Lime to the water each time to raise it:
Espoma Natural Gardening Solutions
You will probably need to do this with the bloom food, but not the veg. Bloom food is much more acidic and you'll be using more. Anyway, after pH reads about 6.5, let it cool to under 100 degrees and pour it in! Your plants will love this stuff.
The 2 lb tubs of food can be found for $9 each and a 5 lb bag of lime for $4. All of this works great, is cheap and will last you a very long time!
I'm convinced most of the foods you see pushed in here is just expensive, trendy stuff.