Help with starting a worm farm business?

I want to start a worm farm business for fun and make some extra money, plus I can use the worms for fishing and their castings for my parents garden.

Anyways I have a few questions. First will Red Wiggler Worms do good for both selling for fishing and selling their castings for fertilizer? Second can I use one "farm" for both the fertilizer and to breed worms to sell? Also if red wigglers aren't the best for fertilizer and fishing which worms are good for both? because I really only want one worm farm to start. Thanks for all the help. Any other tips and tricks would be helpful too. Thanks.

this will help a lot !! http://www.squidoo.com/worm-farm good luck!

the red wiggler worms for creating worm castings and creating worm tea.

Night Crawlers for fishing.

/jabril