Look into leucs or azureus as your first frog.
I'd get a FF starter kit from joshsfrogs.com or azdr.com.
Info on culturing:
Josh’s Frogs How-To Guides Blog Archive Culturing Fruit Flies
Poison Dart Frogs Poison Arrow Frogs Dart Frogs & Poison Arrow Dart Frogs Terrarium Animals from Saurian Enterprises, Inc.
If you want to make your own media,
6 cups cups potato flakes
3 cups sugar
3 cups brewer's yeast
1/4 cup Methyl paraben
a tablespoon or two of honey to control smell