Thanks much both of you ^.^ I really like all the information I got. I'm not going to stop reading about it; it's always good to know as much as you can about something before you get yourself into it. How much do you think the initial set up of a tank about 30 gallons would be? Start to finish, and about how much time, space and money do you think needs to go into culturing fruit flies? I have to go to school right now, but I'll post again soon!